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

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.

Multiple choice

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

  1. Least concern

  2. Near threatened

  3. Vulnerable

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

Least concern is the term used to describe a species that is not at risk of extinction and is not likely to become so in the future.

Multiple choice

How do temperate ecosystems respond to disturbances?

  1. They adapt and recover

  2. They collapse and disappear

  3. They remain unchanged

  4. They become more vulnerable to future disturbances
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Temperate ecosystems typically adapt and recover from disturbances through a process of ecological succession.

Multiple choice

Which of the following is an example of a regenerative medicine technique used in environmental conservation?

  1. Using bioremediation to clean up oil spills

  2. Releasing genetically modified organisms into the environment

  3. Transplanting coral fragments to restore damaged reefs

  4. Introducing non-native species to control invasive species
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Transplanting coral fragments is a regenerative medicine technique used to restore damaged coral reefs by promoting the growth and regeneration of coral colonies.

Multiple choice

What is the primary cause of the decline in global biodiversity?

  1. Habitat Loss

  2. Climate Change

  3. Pollution

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

Habitat loss, primarily due to human activities such as deforestation and urbanization, is the leading cause of biodiversity decline.

Multiple choice

What is the term used to describe the illegal trade of wildlife and wildlife products?

  1. Poaching

  2. Wildlife Trafficking

  3. Illegal Wildlife Trade

  4. Endangered Species Trade
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Wildlife trafficking involves the illegal trade of wildlife and wildlife products, including live animals, animal parts, and derivatives, across national or international borders.