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

How does coastal erosion impact sustainable development?

  1. It threatens coastal communities and infrastructure.

  2. It disrupts ecosystems and biodiversity.

  3. It undermines economic activities.

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

Coastal erosion poses a significant threat to coastal communities and infrastructure, disrupts ecosystems and biodiversity, and undermines economic activities such as tourism and fishing.

Multiple choice

Which human activity is considered a major threat to biodiversity?

  1. Sustainable agriculture

  2. Renewable energy production

  3. Habitat destruction

  4. Organic farming
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Habitat destruction, caused by activities like deforestation, urbanization, and mining, is a significant threat to biodiversity as it reduces the availability of suitable habitats for species.

Multiple choice

What is the primary cause of habitat fragmentation?

  1. Climate change

  2. Natural disasters

  3. Habitat destruction

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

Habitat fragmentation is primarily caused by human activities such as deforestation, urbanization, and infrastructure development, which divide natural habitats into smaller and isolated patches.

Multiple choice

How can tourism contribute to the loss of biodiversity?

  1. Habitat Destruction

  2. Pollution

  3. Overexploitation of Natural Resources

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

Tourism can contribute to the loss of biodiversity through habitat destruction, pollution, and overexploitation of natural resources.

Multiple choice

Which of the following is a major threat to coral reefs?

  1. Climate change

  2. Overfishing

  3. Pollution

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

Climate change, overfishing, and pollution are all major threats to coral reefs. Climate change leads to warmer ocean temperatures, which can cause coral bleaching and death. Overfishing can disrupt the delicate balance of reef ecosystems, while pollution can introduce harmful substances into the water.

Multiple choice

Which of the following is a major factor contributing to the decline of coral reefs?

  1. Climate change

  2. Overfishing

  3. Pollution

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

Climate change, overfishing, and pollution are all major factors contributing to the decline of coral reefs. Climate change leads to warmer ocean temperatures, which can cause coral bleaching and death. Overfishing can disrupt the delicate balance of reef ecosystems, while pollution can introduce harmful substances into the water.

Multiple choice

What are the environmental impacts of hydroelectric dams?

  1. Habitat loss and fragmentation

  2. Changes in water flow and temperature

  3. Disruption of fish migration

  4. Greenhouse gas emissions
Reveal answer Fill a bubble to check yourself
Correct answer
Explanation

Hydroelectric dams can have a number of environmental impacts, including habitat loss and fragmentation, changes in water flow and temperature, disruption of fish migration, and greenhouse gas emissions.

Multiple choice

Which of these is NOT a major threat to coral reefs?

  1. Climate change

  2. Overfishing

  3. Pollution

  4. Natural disasters
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

While natural disasters can cause damage to coral reefs, they are not a major long-term threat compared to human-induced factors like climate change, overfishing, and pollution.

Multiple choice

Which of these is NOT a major factor contributing to the decline of coral reefs worldwide?

  1. Climate change

  2. Overfishing

  3. Pollution

  4. Natural selection
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Natural selection is not a major factor contributing to the decline of coral reefs worldwide, as it is a natural process that occurs over long periods of time.

Multiple choice

Which of the following is NOT a threat to marine biodiversity?

  1. Overfishing

  2. Climate change

  3. Pollution

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

Deforestation is a threat to terrestrial ecosystems, while overfishing, climate change, and pollution are all major threats to marine biodiversity.

Multiple choice

Which of the following is a major threat to freshwater biodiversity?

  1. Habitat loss

  2. Pollution

  3. Climate change

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

Freshwater biodiversity is threatened by various factors, including habitat loss, pollution, climate change, and the introduction of invasive species.

Multiple choice

What is the term used to describe the process by which species become extinct?

  1. Extinction

  2. Endangerment

  3. Vulnerability

  4. Threatened
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Extinction is the term used to describe the process by which species become extinct.

Multiple choice

What is the term used to describe a species that is at risk of extinction?

  1. Endangered

  2. Vulnerable

  3. Threatened

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

Endangered, vulnerable, and threatened are all terms used to describe a species that is at risk of extinction.

Multiple choice

What is the term used to describe a species that has already gone extinct?

  1. Extinct

  2. Endangered

  3. Vulnerable

  4. Threatened
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Extinct is the term used to describe a species that has already gone extinct.

Multiple choice

What is the term used to describe a species that is not currently at risk of extinction but could become so in the future?

  1. Near threatened

  2. Vulnerable

  3. Endangered

  4. Threatened
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Near threatened is the term used to describe a species that is not currently at risk of extinction but could become so in the future.