Environmental Studies ยท Biology
Biodiversity and Conservation
2,266 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
What are some of the potential consequences of ocean acidification for marine ecosystems?
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Loss of biodiversity
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Disruption of food chains
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Reduced productivity of fisheries
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All of the above
D
Correct answer
Explanation
Ocean acidification can lead to loss of biodiversity, disruption of food chains, and reduced productivity of fisheries, all of which can have significant impacts on marine ecosystems.
Which of the following is a potential negative impact of irresponsible wildlife viewing?
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Increased stress and disturbance to wildlife
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Enhanced conservation efforts and support for wildlife protection
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Improved understanding and appreciation of wildlife
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Boosted local economies through tourism revenue
A
Correct answer
Explanation
Irresponsible wildlife viewing can cause stress, disrupt natural behaviors, and even harm wildlife.
What is the main cause of biodiversity loss in India?
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Habitat Destruction
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Pollution
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Climate Change
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Overpopulation
A
Correct answer
Explanation
Habitat destruction is the main cause of biodiversity loss in India.
What are some of the challenges to conserving biodiversity in India?
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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, climate change, and other factors pose challenges to conserving biodiversity in India.
What is the potential impact of irresponsible wildlife encounters during ski and snowboard tours?
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Enhancing the wildlife viewing experience for future visitors
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Causing stress and disturbance to wildlife populations
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Promoting harmonious coexistence between humans and wildlife
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Increasing the risk of wildlife attacks on tour participants
B
Correct answer
Explanation
Irresponsible wildlife encounters during ski and snowboard tours can cause stress and disturbance to wildlife populations, leading to disruptions in their behavior, habitat abandonment, and potential harm to individual animals.
Which of the following is NOT a consequence of overfishing?
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Depletion of fish stocks
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Loss of biodiversity
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Increased food security
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Damage to marine ecosystems
C
Correct answer
Explanation
Overfishing leads to depletion of fish stocks, loss of biodiversity, and damage to marine ecosystems, but it does not increase food security.
How does biodiversity loss affect primary production?
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It has no effect
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It increases primary production
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It decreases primary production
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It can have both positive and negative effects
D
Correct answer
Explanation
Biodiversity loss can have both positive and negative effects on primary production, depending on the specific ecosystem and the species involved.
Which of the following is NOT a consequence of climate change on biodiversity?
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Increased species extinction rates
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Shifts in species' ranges
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Changes in species' behavior
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Increased species' resilience
D
Correct answer
Explanation
Climate change is causing species to become more vulnerable to extinction, not more resilient.
What is the term for the movement of species to new areas in response to climate change?
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Migration
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Adaptation
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Evolution
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Extinction
A
Correct answer
Explanation
Migration is the movement of species from one area to another in response to changes in environmental conditions, such as climate change.
Which of the following ecosystems is most likely to be negatively affected by climate change?
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Coral reefs
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Rainforests
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Deserts
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Tundra
A
Correct answer
Explanation
Coral reefs are very sensitive to changes in water temperature and acidity. As the ocean warms and becomes more acidic due to climate change, coral reefs are bleaching and dying.
Which of the following is an example of a species that is threatened by climate change?
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Polar bears
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Coral reefs
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Monarch butterflies
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All of the above
D
Correct answer
Explanation
Polar bears rely on sea ice for hunting and breeding, but climate change is causing the sea ice to melt. Coral reefs are sensitive to changes in water temperature and acidity, both of which are being affected by climate change. Monarch butterflies are dependent on milkweed plants, which are being affected by climate change.
What is the term for the movement of species to new areas in response to climate change?
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Migration
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Adaptation
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Extinction
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Dispersal
A
Correct answer
Explanation
Migration is the movement of species from one area to another in response to environmental changes, such as climate change.
What are some of the consequences of ocean acidification for marine life other than coral reefs?
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It can harm shellfish and other marine organisms with calcium carbonate shells.
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It can disrupt the food chain.
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It can lead to the loss of biodiversity.
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All of the above
D
Correct answer
Explanation
Ocean acidification can harm shellfish and other marine organisms with calcium carbonate shells, disrupt the food chain, and lead to the loss of biodiversity.
Which human activity poses the greatest threat to coral reefs?
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Climate change and ocean acidification.
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Overfishing and destructive fishing practices.
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Pollution from land-based sources.
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Tourism and recreational activities.
A
Correct answer
Explanation
Climate change and ocean acidification, caused by increased carbon dioxide levels, are the primary threats to coral reefs, leading to coral bleaching and reduced reef resilience.
What is the primary cause of coral bleaching?
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Overfishing
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Pollution
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Climate change
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Habitat destruction
C
Correct answer
Explanation
Climate change, particularly rising ocean temperatures, is the primary cause of coral bleaching.