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

Multiple choice

What is the role of habitat fragmentation in the current extinction crisis?

  1. Habitat fragmentation is a major driver of the current extinction crisis

  2. Habitat fragmentation is a minor driver of the current extinction crisis

  3. Habitat fragmentation is not a driver of the current extinction crisis

  4. The role of habitat fragmentation in the current extinction crisis is unknown
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Habitat fragmentation is a major driver of the current extinction crisis. It is estimated that habitat fragmentation is responsible for the extinction of 10-20% of all species.

Multiple choice

How are wetlands threatened?

  1. Drainage for agriculture.

  2. Pollution.

  3. Climate change.

  4. All of the above.
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Wetlands are threatened by a variety of factors, including drainage for agriculture, pollution, and climate change.

Multiple choice

Which of the following is NOT a potential effect of noise pollution on wildlife?

  1. Increased stress levels

  2. Reduced reproductive success

  3. Improved foraging efficiency

  4. Altered migration patterns
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Noise pollution can have a variety of negative effects on wildlife, including increased stress levels, reduced reproductive success, and altered migration patterns. However, it is unlikely to improve foraging efficiency, as noise can make it more difficult for animals to detect prey or predators.

Multiple choice

Which of the following is NOT a potential consequence of noise pollution for ecosystems?

  1. Reduced biodiversity

  2. Altered predator-prey interactions

  3. Increased competition for resources

  4. Improved ecosystem resilience
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Noise pollution can have a variety of negative consequences for ecosystems, including reduced biodiversity, altered predator-prey interactions, and increased competition for resources. However, it is unlikely to improve ecosystem resilience, as noise can make it more difficult for organisms to adapt to changing environmental conditions.

Multiple choice

Which of the following is NOT a potential effect of noise pollution on wildlife?

  1. Hearing loss

  2. Stress

  3. Reduced reproductive success

  4. Improved foraging efficiency
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Noise pollution has been linked to a number of negative effects on wildlife, including hearing loss, stress, and reduced reproductive success. However, it is not known to improve foraging efficiency.

Multiple choice

Which of the following is NOT a common indicator used to assess the effectiveness of marine heatwave management?

  1. Changes in species distribution and abundance.

  2. Coral bleaching.

  3. Seagrass die-offs.

  4. Economic losses in fisheries.
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Economic losses in fisheries are not typically used as an indicator to assess the effectiveness of marine heatwave management, as they are more commonly associated with the impacts of marine heatwaves rather than management interventions.

Multiple choice

What is the main threat to coral reefs worldwide?

  1. Overfishing

  2. Climate change

  3. Pollution

  4. Coastal development
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Climate change, particularly rising sea temperatures and ocean acidification, is the primary threat to coral reefs worldwide, as it leads to coral bleaching and mortality.

Multiple choice

Which of the following is NOT a common threat to marine and coastal ecosystems?

  1. Pollution

  2. Overfishing

  3. Habitat destruction

  4. Climate change
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

While habitat destruction can occur in marine and coastal ecosystems, it is not as common as pollution, overfishing, and climate change.

Multiple choice

Which of the following is NOT a consequence of biodiversity loss?

  1. Reduced ecosystem productivity

  2. Increased vulnerability to pests and diseases

  3. Enhanced resilience to climate change

  4. Loss of cultural heritage
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Biodiversity loss typically leads to reduced ecosystem resilience, making ecosystems more susceptible to the impacts of climate change.

Multiple choice

The loss of biodiversity can lead to:

  1. Reduced ecosystem productivity

  2. Increased pollution

  3. Climate change

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Biodiversity loss has wide-ranging consequences, including reduced ecosystem productivity, increased pollution, and climate change.

Multiple choice

The loss of biodiversity can have significant consequences for:

  1. Ecosystem functioning

  2. Human health and well-being

  3. Economic stability

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Biodiversity loss can disrupt ecosystem functioning, leading to reduced ecosystem services, which can negatively impact human health and well-being, as well as economic stability.

Multiple choice

Which of these is NOT a potential negative environmental impact of sound art?

  1. Noise pollution

  2. Habitat disturbance

  3. Species displacement

  4. None of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Noise pollution, habitat disturbance, and species displacement are all potential negative environmental impacts of sound art.

Multiple choice

What are some of the economic costs that can be associated with listing a species under the ESA?

  1. Increased costs for businesses that operate in the species' habitat.

  2. Reduced property values for landowners who own land in the species' habitat.

  3. Lost jobs in industries that rely on the species.

  4. All of the above.
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Listing a species under the ESA can have a number of economic costs, including increased costs for businesses that operate in the species' habitat, reduced property values for landowners who own land in the species' habitat, and lost jobs in industries that rely on the species.

Multiple choice

Which of the following is NOT a threat to ecosystem services?

  1. Climate change

  2. Pollution

  3. Habitat loss

  4. Sustainable agriculture
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Sustainable agriculture is not a threat to ecosystem services because it helps to protect and restore the natural systems that provide us with essential services.

Multiple choice

What is one challenge to conserving ecosystem services?

  1. Climate change

  2. Pollution

  3. Habitat loss

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

All of the above are challenges to conserving ecosystem services.