Environmental Studies ยท Biology
Biodiversity and Conservation
2,388 Questions
Biodiversity and conservation questions address threats to ecosystems, climate change impacts, and habitat loss. These topics are essential for environmental science sections in major competitive exams. Practicing these questions clarifies concepts regarding species extinction and ecological management.
Habitat loss consequencesClimate change impactsEcosystem degradation causesDesert biodiversity threatsForest diversity threatsResource extraction effects
Biodiversity and Conservation Questions
The Tragedy of the Commons is a concept that has been applied to a wide range of environmental issues. Which of the following is NOT an example of a Tragedy of the Commons?
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Overfishing.
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Deforestation.
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Pollution.
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Climate change.
D
Correct answer
Explanation
Climate change is a global issue that is caused by the collective actions of individuals and societies, but it is not typically considered a Tragedy of the Commons in the same way that overfishing, deforestation, and pollution are.
Which of the following is a key indicator of resilience in a riverine environment?
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High biodiversity
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Low water quality
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Extensive human development
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Frequent flooding
A
Correct answer
Explanation
High biodiversity in a riverine environment indicates a healthy ecosystem with a diverse range of species, which contributes to its resilience and ability to withstand disturbances.
How does vegetation contribute to the resilience of a riverine environment?
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By reducing erosion
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By increasing water pollution
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By promoting invasive species
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By decreasing habitat diversity
A
Correct answer
Explanation
Vegetation in a riverine environment helps to reduce erosion by stabilizing the riverbanks and slowing down the flow of water, thereby protecting the ecosystem from degradation.
What is the term for the loss of biodiversity?
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Extinction
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Habitat destruction
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Pollution
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Climate change
A
Correct answer
Explanation
Extinction is the term for the loss of biodiversity, as species disappear due to various factors such as habitat destruction, pollution, and climate change.
What is the impact of sand mining on biodiversity?
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It increases biodiversity.
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It has no impact on biodiversity.
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It decreases biodiversity.
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It increases the number of invasive species.
C
Correct answer
Explanation
Sand mining can destroy habitats and disrupt ecosystems, leading to a decline in biodiversity.
Which of the following is NOT a common type of cumulative impact?
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Habitat loss and fragmentation
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Water pollution
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Air pollution
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Climate change
D
Correct answer
Explanation
Climate change is a global phenomenon that is caused by the release of greenhouse gases into the atmosphere. While it can have significant environmental impacts, it is not typically considered a cumulative impact in the context of EIA, as it is not caused by a specific project or activity.
How does human activity impact conservation?
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By overexploiting natural resources.
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By polluting the environment.
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By introducing invasive species.
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By destroying habitats.
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All of the above.
E
Correct answer
Explanation
Human activity can impact conservation in a variety of ways, including by overexploiting natural resources, polluting the environment, introducing invasive species, and destroying habitats.
What are some of the threats to biodiversity?
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Habitat loss.
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Pollution.
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Climate change.
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Invasive species.
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All of the above.
E
Correct answer
Explanation
Biodiversity is threatened by a number of factors, including habitat loss, pollution, climate change, and invasive species.
How does rising sea levels affect coastal ecosystems?
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Increased biodiversity
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Enhanced coral reef growth
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Loss of coastal wetlands
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Improved water quality
C
Correct answer
Explanation
Rising sea levels lead to the inundation and erosion of coastal wetlands, which are important ecosystems for biodiversity, storm protection, and carbon sequestration.
What is the primary cause of habitat loss for many endangered species?
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Deforestation
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Pollution
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Climate Change
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Overpopulation
A
Correct answer
Explanation
Deforestation, the clearing of forests for various purposes such as agriculture, logging, and development, is a major contributor to habitat loss and fragmentation, leading to the decline of many endangered species.
What is the term used to describe the loss of biodiversity due to human activities?
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Deforestation
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Pollution
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Climate change
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Habitat destruction
D
Correct answer
Explanation
Habitat destruction is the primary cause of biodiversity loss due to human activities. Deforestation, pollution, and climate change are all factors that contribute to habitat destruction.
Which of the following is NOT a challenge faced by conservation efforts?
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Habitat loss and fragmentation
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Pollution
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Climate change
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Lack of public awareness and support
D
Correct answer
Explanation
Lack of public awareness and support is not a challenge faced by conservation efforts. In fact, public awareness and support are essential for the success of conservation efforts.
Which of the following is NOT a threat to coral reefs?
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Climate change
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Overfishing
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Pollution
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Deforestation
D
Correct answer
Explanation
Deforestation is not a threat to coral reefs. Climate change, overfishing, and pollution are all threats to coral reefs.
Which of the following is a threat to the aesthetic value of biodiversity?
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Habitat destruction
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Pollution
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Climate change
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All of the above
D
Correct answer
Explanation
Habitat destruction, pollution, and climate change are all threats to the aesthetic value of biodiversity.
What are some challenges to protecting the aesthetic value of biodiversity?
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Habitat destruction
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Pollution
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Climate change
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All of the above
D
Correct answer
Explanation
Habitat destruction, pollution, and climate change are all challenges to protecting the aesthetic value of biodiversity.