Read the given passage carefully and answer the question that follows.
The discovery of a new bird species has sparked excitement among ornithologists and bird enthusiasts worldwide. The bird, named the Sapphire-winged Warbler, discovered in a remote tropical island's rainforests, is a unique bird with vibrant blue feathers and a distinctive melodic song. Birdwatchers and nature enthusiasts have been flocking to the island in hopes of catching a glimpse of this elusive and captivating creature. The discovery of the Sapphire-winged Warbler highlights the importance of preserving and protecting habitats. Amidst the excitement surrounding the discovery of the Sapphire-winged Warbler, researchers have embarked on a mission to uncover the bird's migratory patterns. Equipped with satellite tracking devices, they aim to trace the remarkable journey of this species across vast distances. By unravelling its migratory routes and stopover locations, scientists hope to gain insight into the challenges the Sapphire-winged Warbler faces during its arduous travels. The local community on the tropical island has embraced the newfound avian resident with great enthusiasm. Efforts are underway to raise awareness about the importance of conservation and to create protected areas that ensure the continued existence of this exquisite species.Based on the given passage, which of the following inferences can be made? (CGLE 2023 Tier II Paper I)

Read the given passage carefully and answer the question that follows.
The discovery of a new bird species has sparked excitement among ornithologists and bird enthusiasts worldwide. The bird, named the Sapphire-winged Warbler, discovered in a remote tropical island's rainforests, is a unique bird with vibrant blue feathers and a distinctive melodic song. Birdwatchers and nature enthusiasts have been flocking to the island in hopes of catching a glimpse of this elusive and captivating creature. The discovery of the Sapphire-winged Warbler highlights the importance of preserving and protecting habitats. Amidst the excitement surrounding the discovery of the Sapphire-winged Warbler, researchers have embarked on a mission to uncover the bird's migratory patterns. Equipped with satellite tracking devices, they aim to trace the remarkable journey of this species across vast distances. By unravelling its migratory routes and stopover locations, scientists hope to gain insight into the challenges the Sapphire-winged Warbler faces during its arduous travels. The local community on the tropical island has embraced the newfound avian resident with great enthusiasm. Efforts are underway to raise awareness about the importance of conservation and to create protected areas that ensure the continued existence of this exquisite species.Which statement best reflects a fact mentioned in the given passage? (CGLE 2023 Tier II Paper I)

Read the given passage and answer the questions that follow.

The usual perception of a wetland is a sprawling lake far away from a city, distant from humans, entirely pristine and therefore, lush with biodiversity. However, our research presents interesting new findings about these entities. Wetlands are in fact embedded in our towns and cities. It is often believed that such urban water bodies aren’t ecologically useful. But these water bodies play a crucial role in supporting bird life — and the ecosystem services this brings. Our research explored ponds across Delhi which is quite unique in terms of retaining many urban forests, a protected floodplain and patches of the Aravalli hills. These diverse habitats — and the location of Delhi in the middle of a major migratory pathway of birds — have led to over 470 bird species being recorded in the city, the second-longest such list for any capital globally.
A major reason for this avian abundance is that the Delhi Development Authority (DDA) disallows the destruction of water bodies over a hectare in size. This has enabled 570 ponds to survive — the histories of these ponds are as varied as their appearance, from being village ponds to temple tanks, rainwater harvesting structures, water bodies made in parks, etc. Delhi’s ponds aren’t managed collectively — each is in the hands of municipalities, welfare associations or other institutions. Consequently, every pond has its own characteristics. Some are heavily managed, others are entirely ignored, some are accessible, others are hard to approach. The water quality, garbage levels and foliage also vary.
Importantly, this variety allows multiple birds to use these ponds. We found at least 177 species at the 39 water bodies — ponds comprise less than 0.5% of the area of Delhi but provide a home to over 40% of the city’s bird species. These included species of global conservation concern like the common pochard, the ferruginous pochard, the river lapwing, the black-headed ibis and the painted stork. Also, ponds with less management interventions had greater diversity of habitats birds could use — as these interventions grew, the number of bird species declined. We found 46% birds were wetland specialists while the rest used the trees and shrubs on the edges of ponds.The main theme of the passage is: (Selection Post Higher Secondary Level)

Read the given passage and answer the questions that follow.

The usual perception of a wetland is a sprawling lake far away from a city, distant from humans, entirely pristine and therefore, lush with biodiversity. However, our research presents interesting new findings about these entities. Wetlands are in fact embedded in our towns and cities. It is often believed that such urban water bodies aren’t ecologically useful. But these water bodies play a crucial role in supporting bird life — and the ecosystem services this brings. Our research explored ponds across Delhi which is quite unique in terms of retaining many urban forests, a protected floodplain and patches of the Aravalli hills. These diverse habitats — and the location of Delhi in the middle of a major migratory pathway of birds — have led to over 470 bird species being recorded in the city, the second-longest such list for any capital globally.
A major reason for this avian abundance is that the Delhi Development Authority (DDA) disallows the destruction of water bodies over a hectare in size. This has enabled 570 ponds to survive — the histories of these ponds are as varied as their appearance, from being village ponds to temple tanks, rainwater harvesting structures, water bodies made in parks, etc. Delhi’s ponds aren’t managed collectively — each is in the hands of municipalities, welfare associations or other institutions. Consequently, every pond has its own characteristics. Some are heavily managed, others are entirely ignored, some are accessible, others are hard to approach. The water quality, garbage levels and foliage also vary.
Importantly, this variety allows multiple birds to use these ponds. We found at least 177 species at the 39 water bodies — ponds comprise less than 0.5% of the area of Delhi but provide a home to over 40% of the city’s bird species. These included species of global conservation concern like the common pochard, the ferruginous pochard, the river lapwing, the black-headed ibis and the painted stork. Also, ponds with less management interventions had greater diversity of habitats birds could use — as these interventions grew, the number of bird species declined. We found 46% birds were wetland specialists while the rest used the trees and shrubs on the edges of ponds.The above passage is: (Selection Post Higher Secondary Level)

Read the given passage and answer the questions that follow.

Flamingos are long-legged wading birds that are usually covered in bright pink feathers. With a name that derives from the Spanish or Portuguese word meaning “flame-coloured,” the birds are known for their vibrant appearance. The pink of their feathers, though it is their most famous quality, is not a hereditary trait. Flamingos are in fact born dull grey.
For flamingos, the phrase “You are what you eat” holds more truth than it might for humans. The bright pink colour of flamingos comes from beta-carotene, a red-orange pigment that’s found in high amounts within the algae, brine fly larvae, and brine shrimp that flamingos eat in their wetland environment. In the digestive system, enzymes break down carotenoids into pigments that are absorbed by fats in the liver and deposited in the feathers and skin of Flamingo. To colour those external attributes, carotenoids must be ingested in very large amounts. As the flamingo diet is nearly exclusively carotenoid-filled delicacies, the birds have no problem colouring themselves. Humans, on the other hand, would need to eat quite a lot of carrots, which is rich in carotenoids , to turn their skin a shade of orange.
There are six different species of flamingos, which are found in various places around the world. Because habitat and food sources vary from place to place and season to season, the birds’ colours also vary. Some flamingos are darker or brighter shades of pink, others are more orange or red, and still others are pure white.Select an appropriate title for the given passage. (Selection Post Phase X Matriculation Level)

Read the given passage and answer the questions that follow.

Flamingos are long-legged wading birds that are usually covered in bright pink feathers. With a name that derives from the Spanish or Portuguese word meaning “flame-coloured,” the birds are known for their vibrant appearance. The pink of their feathers, though it is their most famous quality, is not a hereditary trait. Flamingos are in fact born dull grey.
For flamingos, the phrase “You are what you eat” holds more truth than it might for humans. The bright pink colour of flamingos comes from beta-carotene, a red-orange pigment that’s found in high amounts within the algae, brine fly larvae, and brine shrimp that flamingos eat in their wetland environment. In the digestive system, enzymes break down carotenoids into pigments that are absorbed by fats in the liver and deposited in the feathers and skin of Flamingo. To colour those external attributes, carotenoids must be ingested in very large amounts. As the flamingo diet is nearly exclusively carotenoid-filled delicacies, the birds have no problem colouring themselves. Humans, on the other hand, would need to eat quite a lot of carrots, which is rich in carotenoids , to turn their skin a shade of orange.
There are six different species of flamingos, which are found in various places around the world. Because habitat and food sources vary from place to place and season to season, the birds’ colours also vary. Some flamingos are darker or brighter shades of pink, others are more orange or red, and still others are pure white.Select the most appropriate option to fill in the blank.

Flamingo’s exquisite colour is particularly a result of _______________. (Selection Post Phase X Matriculation Level)

Read the given passage and answer the questions that follow.

Flamingos are long-legged wading birds that are usually covered in bright pink feathers. With a name that derives from the Spanish or Portuguese word meaning “flame-coloured,” the birds are known for their vibrant appearance. The pink of their feathers, though it is their most famous quality, is not a hereditary trait. Flamingos are in fact born dull grey.
For flamingos, the phrase “You are what you eat” holds more truth than it might for humans. The bright pink colour of flamingos comes from beta-carotene, a red-orange pigment that’s found in high amounts within the algae, brine fly larvae, and brine shrimp that flamingos eat in their wetland environment. In the digestive system, enzymes break down carotenoids into pigments that are absorbed by fats in the liver and deposited in the feathers and skin of Flamingo. To colour those external attributes, carotenoids must be ingested in very large amounts. As the flamingo diet is nearly exclusively carotenoid-filled delicacies, the birds have no problem colouring themselves. Humans, on the other hand, would need to eat quite a lot of carrots, which is rich in carotenoids , to turn their skin a shade of orange.
There are six different species of flamingos, which are found in various places around the world. Because habitat and food sources vary from place to place and season to season, the birds’ colours also vary. Some flamingos are darker or brighter shades of pink, others are more orange or red, and still others are pure white.Select the most appropriate option to fill in the blank.

Flamingo chicks hatch with ______________ feathers, which later turn into bright pink colours. (Selection Post Phase X Matriculation Level)

Read the given passage and answer the questions that follow.

Amidst the corona pandemic, particularly during the lockdown phase, some positive effects were observed on the wildlife. During the lockdown phase, animals had an increased and uninterrupted territory. In some areas, wild animals were seen on roads and in residential areas. Less traffic, less human intervention and less pollution gave space to wildlife to thrive. It was definitely a rare phenomenon on the roads. Wildlife re-entered the areas snatched from them. However, these positive and negative impacts were transient and were largely observed during the complete lockdown phase only.
Some of the worst sufferers of the pandemic are stray animals like dogs and cats. They are no longer able to survive on waste food material from restaurants and shops because of shops being closed. Also, they are being abandoned by their owners due to unfounded fears that they may spread COVID-19. The worst possibility is that the stray animals might eat disposed masks and gloves, which can become lethal.
Overall although a few positive impacts of COVID-19 on the environment were seen, these were the short-term effects induced largely by the nation-wide lockdown. Indeed, the pandemic is expected to pose long-term adverse effects on the environment in future.
Some of the gravest long-term effects of corona are the dangers posed to the environment. These are: the phenomenal increase in the use of chemicals that abound in hand wash and sanitizers; the extensive use of plastic by way of masks and gloves; the huge amount of hospital waste; and finally the effect of prescription drugs and over-the-counter medications that get into lakes, rivers and streams which ultimately pollute our waters. All these will eventually contribute to a tremendous increase in environmental pollution.______ is NOT responsible for the increase in environmental pollution. (Selection Post Matriculation Level)

Read the given passage and answer the questions that follow.

Amidst the corona pandemic, particularly during the lockdown phase, some positive effects were observed on the wildlife. During the lockdown phase, animals had an increased and uninterrupted territory. In some areas, wild animals were seen on roads and in residential areas. Less traffic, less human intervention and less pollution gave space to wildlife to thrive. It was definitely a rare phenomenon on the roads. Wildlife re-entered the areas snatched from them. However, these positive and negative impacts were transient and were largely observed during the complete lockdown phase only.
Some of the worst sufferers of the pandemic are stray animals like dogs and cats. They are no longer able to survive on waste food material from restaurants and shops because of shops being closed. Also, they are being abandoned by their owners due to unfounded fears that they may spread COVID-19. The worst possibility is that the stray animals might eat disposed masks and gloves, which can become lethal.
Overall although a few positive impacts of COVID-19 on the environment were seen, these were the short-term effects induced largely by the nation-wide lockdown. Indeed, the pandemic is expected to pose long-term adverse effects on the environment in future.
Some of the gravest long-term effects of corona are the dangers posed to the environment. These are: the phenomenal increase in the use of chemicals that abound in hand wash and sanitizers; the extensive use of plastic by way of masks and gloves; the huge amount of hospital waste; and finally the effect of prescription drugs and over-the-counter medications that get into lakes, rivers and streams which ultimately pollute our waters. All these will eventually contribute to a tremendous increase in environmental pollution.Select the option that does NOT correctly complete the given sentence.

During the pandemic, stray animals were at greater risk because they ______. (Selection Post Matriculation Level)

Read the given passage and answer the questions that follow.

The usual perception of a wetland is a sprawling lake far away from a city, distant from humans, entirely pristine and therefore, lush with biodiversity. However, our research presents interesting new findings about these entities. Wetlands are in fact embedded in our towns and cities. It is often believed that such urban water bodies aren’t ecologically useful. But these water bodies play a crucial role in supporting bird life — and the ecosystem services this brings. Our research explored ponds across Delhi which is quite unique in terms of retaining many urban forests, a protected floodplain and patches of the Aravalli hills. These diverse habitats — and the location of Delhi in the middle of a major migratory pathway of birds — have led to over 470 bird species being recorded in the city, the second-longest such list for any capital globally.
A major reason for this avian abundance is that the Delhi Development Authority (DDA) disallows the destruction of water bodies over a hectare in size. This has enabled 570 ponds to survive — the histories of these ponds are as varied as their appearance, from being village ponds to temple tanks, rainwater harvesting structures, water bodies made in parks, etc. Delhi’s ponds aren’t managed collectively — each is in the hands of municipalities, welfare associations or other institutions. Consequently, every pond has its own characteristics. Some are heavily managed, others are entirely ignored, some are accessible, others are hard to approach. The water quality, garbage levels and foliage also vary.
Importantly, this variety allows multiple birds to use these ponds. We found at least 177 species at the 39 water bodies — ponds comprise less than 0.5% of the area of Delhi but provide a home to over 40% of the city’s bird species. These included species of global conservation concern like the common pochard, the ferruginous pochard, the river lapwing, the black-headed ibis and the painted stork. Also, ponds with less management interventions had greater diversity of habitats birds could use — as these interventions grew, the number of bird species declined. We found 46% birds were wetland specialists while the rest used the trees and shrubs on the edges of ponds.What are the reasons of abundant bird population in Delhi?

a. Delhi is in the middle of a major migratory pathway of birds.
b. Delhi has many forests, Aravali hills and a protected flood plain.
c. Ponds in Delhi are very well managed collectively by municipalities and welfare associations.
d. Destruction of water bodies over a hectare in size is banned in Delhi. (Selection Post Higher Secondary Level)

Read the given passage and answer the questions that follow.

Amidst the corona pandemic, particularly during the lockdown phase, some positive effects were observed on the wildlife. During the lockdown phase, animals had an increased and uninterrupted territory. In some areas, wild animals were seen on roads and in residential areas. Less traffic, less human intervention and less pollution gave space to wildlife to thrive. It was definitely a rare phenomenon on the roads. Wildlife re-entered the areas snatched from them. However, these positive and negative impacts were transient and were largely observed during the complete lockdown phase only.
Some of the worst sufferers of the pandemic are stray animals like dogs and cats. They are no longer able to survive on waste food material from restaurants and shops because of shops being closed. Also, they are being abandoned by their owners due to unfounded fears that they may spread COVID-19. The worst possibility is that the stray animals might eat disposed masks and gloves, which can become lethal.
Overall although a few positive impacts of COVID-19 on the environment were seen, these were the short-term effects induced largely by the nation-wide lockdown. Indeed, the pandemic is expected to pose long-term adverse effects on the environment in future.
Some of the gravest long-term effects of corona are the dangers posed to the environment. These are: the phenomenal increase in the use of chemicals that abound in hand wash and sanitizers; the extensive use of plastic by way of masks and gloves; the huge amount of hospital waste; and finally the effect of prescription drugs and over-the-counter medications that get into lakes, rivers and streams which ultimately pollute our waters. All these will eventually contribute to a tremendous increase in environmental pollution.‘Unfounded fear’ means fear based on: (Selection Post Matriculation Level)

Read the given passage and answer the questions that follow.

The usual perception of a wetland is a sprawling lake far away from a city, distant from humans, entirely pristine and therefore, lush with biodiversity. However, our research presents interesting new findings about these entities. Wetlands are in fact embedded in our towns and cities. It is often believed that such urban water bodies aren’t ecologically useful. But these water bodies play a crucial role in supporting bird life — and the ecosystem services this brings. Our research explored ponds across Delhi which is quite unique in terms of retaining many urban forests, a protected floodplain and patches of the Aravalli hills. These diverse habitats — and the location of Delhi in the middle of a major migratory pathway of birds — have led to over 470 bird species being recorded in the city, the second-longest such list for any capital globally.
A major reason for this avian abundance is that the Delhi Development Authority (DDA) disallows the destruction of water bodies over a hectare in size. This has enabled 570 ponds to survive — the histories of these ponds are as varied as their appearance, from being village ponds to temple tanks, rainwater harvesting structures, water bodies made in parks, etc. Delhi’s ponds aren’t managed collectively — each is in the hands of municipalities, welfare associations or other institutions. Consequently, every pond has its own characteristics. Some are heavily managed, others are entirely ignored, some are accessible, others are hard to approach. The water quality, garbage levels and foliage also vary.
Importantly, this variety allows multiple birds to use these ponds. We found at least 177 species at the 39 water bodies — ponds comprise less than 0.5% of the area of Delhi but provide a home to over 40% of the city’s bird species. These included species of global conservation concern like the common pochard, the ferruginous pochard, the river lapwing, the black-headed ibis and the painted stork. Also, ponds with less management interventions had greater diversity of habitats birds could use — as these interventions grew, the number of bird species declined. We found 46% birds were wetland specialists while the rest used the trees and shrubs on the edges of ponds.What happens when the ponds are heavily managed? (Selection Post Higher Secondary Level)

Read the given passage and answer the questions that follow.

The usual perception of a wetland is a sprawling lake far away from a city, distant from humans, entirely pristine and therefore, lush with biodiversity. However, our research presents interesting new findings about these entities. Wetlands are in fact embedded in our towns and cities. It is often believed that such urban water bodies aren’t ecologically useful. But these water bodies play a crucial role in supporting bird life — and the ecosystem services this brings. Our research explored ponds across Delhi which is quite unique in terms of retaining many urban forests, a protected floodplain and patches of the Aravalli hills. These diverse habitats — and the location of Delhi in the middle of a major migratory pathway of birds — have led to over 470 bird species being recorded in the city, the second-longest such list for any capital globally.
A major reason for this avian abundance is that the Delhi Development Authority (DDA) disallows the destruction of water bodies over a hectare in size. This has enabled 570 ponds to survive — the histories of these ponds are as varied as their appearance, from being village ponds to temple tanks, rainwater harvesting structures, water bodies made in parks, etc. Delhi’s ponds aren’t managed collectively — each is in the hands of municipalities, welfare associations or other institutions. Consequently, every pond has its own characteristics. Some are heavily managed, others are entirely ignored, some are accessible, others are hard to approach. The water quality, garbage levels and foliage also vary.
Importantly, this variety allows multiple birds to use these ponds. We found at least 177 species at the 39 water bodies — ponds comprise less than 0.5% of the area of Delhi but provide a home to over 40% of the city’s bird species. These included species of global conservation concern like the common pochard, the ferruginous pochard, the river lapwing, the black-headed ibis and the painted stork. Also, ponds with less management interventions had greater diversity of habitats birds could use — as these interventions grew, the number of bird species declined. We found 46% birds were wetland specialists while the rest used the trees and shrubs on the edges of ponds.According to the passage, Delhi is quite unique in certain terms. Pick the option that does NOT indicate its uniqueness. (Selection Post Higher Secondary Level)

Read the given passage and answer the questions that follow.

Amidst the corona pandemic, particularly during the lockdown phase, some positive effects were observed on the wildlife. During the lockdown phase, animals had an increased and uninterrupted territory. In some areas, wild animals were seen on roads and in residential areas. Less traffic, less human intervention and less pollution gave space to wildlife to thrive. It was definitely a rare phenomenon on the roads. Wildlife re-entered the areas snatched from them. However, these positive and negative impacts were transient and were largely observed during the complete lockdown phase only.
Some of the worst sufferers of the pandemic are stray animals like dogs and cats. They are no longer able to survive on waste food material from restaurants and shops because of shops being closed. Also, they are being abandoned by their owners due to unfounded fears that they may spread COVID-19. The worst possibility is that the stray animals might eat disposed masks and gloves, which can become lethal.
Overall although a few positive impacts of COVID-19 on the environment were seen, these were the short-term effects induced largely by the nation-wide lockdown. Indeed, the pandemic is expected to pose long-term adverse effects on the environment in future.
Some of the gravest long-term effects of corona are the dangers posed to the environment. These are: the phenomenal increase in the use of chemicals that abound in hand wash and sanitizers; the extensive use of plastic by way of masks and gloves; the huge amount of hospital waste; and finally the effect of prescription drugs and over-the-counter medications that get into lakes, rivers and streams which ultimately pollute our waters. All these will eventually contribute to a tremendous increase in environmental pollution.Select the statement that is NOT true as per the passage. (Selection Post Matriculation Level)

Read the given passage and answer the questions that follow.

Amidst the corona pandemic, particularly during the lockdown phase, some positive effects were observed on the wildlife. During the lockdown phase, animals had an increased and uninterrupted territory. In some areas, wild animals were seen on roads and in residential areas. Less traffic, less human intervention and less pollution gave space to wildlife to thrive. It was definitely a rare phenomenon on the roads. Wildlife re-entered the areas snatched from them. However, these positive and negative impacts were transient and were largely observed during the complete lockdown phase only.
Some of the worst sufferers of the pandemic are stray animals like dogs and cats. They are no longer able to survive on waste food material from restaurants and shops because of shops being closed. Also, they are being abandoned by their owners due to unfounded fears that they may spread COVID-19. The worst possibility is that the stray animals might eat disposed masks and gloves, which can become lethal.
Overall although a few positive impacts of COVID-19 on the environment were seen, these were the short-term effects induced largely by the nation-wide lockdown. Indeed, the pandemic is expected to pose long-term adverse effects on the environment in future.
Some of the gravest long-term effects of corona are the dangers posed to the environment. These are: the phenomenal increase in the use of chemicals that abound in hand wash and sanitizers; the extensive use of plastic by way of masks and gloves; the huge amount of hospital waste; and finally the effect of prescription drugs and over-the-counter medications that get into lakes, rivers and streams which ultimately pollute our waters. All these will eventually contribute to a tremendous increase in environmental pollution.One major advantages of the complete lockdown for animals was more ______. (Selection Post Matriculation Level)

Read the given passage and answer the questions that follow.

Flamingos are long-legged wading birds that are usually covered in bright pink feathers. With a name that derives from the Spanish or Portuguese word meaning “flame-coloured,” the birds are known for their vibrant appearance. The pink of their feathers, though it is their most famous quality, is not a hereditary trait. Flamingos are in fact born dull grey.
For flamingos, the phrase “You are what you eat” holds more truth than it might for humans. The bright pink colour of flamingos comes from beta-carotene, a red-orange pigment that’s found in high amounts within the algae, brine fly larvae, and brine shrimp that flamingos eat in their wetland environment. In the digestive system, enzymes break down carotenoids into pigments that are absorbed by fats in the liver and deposited in the feathers and skin of Flamingo. To colour those external attributes, carotenoids must be ingested in very large amounts. As the flamingo diet is nearly exclusively carotenoid-filled delicacies, the birds have no problem colouring themselves. Humans, on the other hand, would need to eat quite a lot of carrots, which is rich in carotenoids , to turn their skin a shade of orange.
There are six different species of flamingos, which are found in various places around the world. Because habitat and food sources vary from place to place and season to season, the birds’ colours also vary. Some flamingos are darker or brighter shades of pink, others are more orange or red, and still others are pure white.Select the most appropriate ANTONYM of the given word.

Vibrant (Selection Post Phase X Matriculation Level)

Read the given passage and answer the questions that follow.

Flamingos are long-legged wading birds that are usually covered in bright pink feathers. With a name that derives from the Spanish or Portuguese word meaning “flame-coloured,” the birds are known for their vibrant appearance. The pink of their feathers, though it is their most famous quality, is not a hereditary trait. Flamingos are in fact born dull grey.
For flamingos, the phrase “You are what you eat” holds more truth than it might for humans. The bright pink colour of flamingos comes from beta-carotene, a red-orange pigment that’s found in high amounts within the algae, brine fly larvae, and brine shrimp that flamingos eat in their wetland environment. In the digestive system, enzymes break down carotenoids into pigments that are absorbed by fats in the liver and deposited in the feathers and skin of Flamingo. To colour those external attributes, carotenoids must be ingested in very large amounts. As the flamingo diet is nearly exclusively carotenoid-filled delicacies, the birds have no problem colouring themselves. Humans, on the other hand, would need to eat quite a lot of carrots, which is rich in carotenoids , to turn their skin a shade of orange.
There are six different species of flamingos, which are found in various places around the world. Because habitat and food sources vary from place to place and season to season, the birds’ colours also vary. Some flamingos are darker or brighter shades of pink, others are more orange or red, and still others are pure white.Identify the tone of the passage from the following options. (Selection Post Phase X Matriculation Level)

Read the given passage and answer the question that follows.
Evolution, the fundamental principle underlying the diversity of life on Earth, is a captivating and intricate process that has unfolded over billions of years. It is driven by the mechanisms of variation, inheritance, and natural selection, as first expounded by Charles Darwin in his revolutionary work ‘On the Origin of Species’.
Starting from the simplest single-celled organisms, evolution has shaped and diversified life into an awe-inspiring array of plants, animals, and microorganisms, each uniquely adapted to their environments. Through the passage of time, genetic mutations have provided the genetic variability essential for species to adapt and survive in changing conditions.
The relentless force of natural selection acts as nature’s sieve, favouring traits that confer advantages in the struggle for existence while filtering out less advantageous traits. This process has resulted in the refinement of species, allowing them to better thrive and reproduce in their particular habitats.
Over epochs, evolution has also led to the emergence of complex ecosystems and ecological interactions, creating a delicate balance of interdependence between living organisms and their surroundings.Select the most appropriate option that can be used as a one-word substitute for the given group of words.

Very complicated or detailed (Grade C Stenographers LDC Examination 2018 and 2019)

How are our actions further threatening the endangered status of certain species of animals?