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 long-term impact of oil pollution on marine ecosystems?

  1. Reduced biodiversity

  2. Changes in ecosystem structure and function

  3. Accumulation of toxins in the food chain

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

Oil pollution can have a number of long-term impacts on marine ecosystems, including reduced biodiversity, changes in ecosystem structure and function, and accumulation of toxins in the food chain.

Multiple choice

What are some threats to genetic diversity?

  1. Habitat loss and fragmentation.

  2. Pollution.

  3. Climate change.

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

Genetic diversity is threatened by a number of factors, including habitat loss and fragmentation, pollution, climate change, and inbreeding.

Multiple choice

How does industrialization lead to a loss of genetic diversity?

  1. By destroying natural habitats.

  2. By polluting the environment.

  3. By introducing invasive species.

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

Industrialization can lead to a loss of genetic diversity by destroying natural habitats, polluting the environment, and introducing invasive species.

Multiple choice

What are some examples of how industrialization has led to a loss of genetic diversity?

  1. The destruction of rainforests for agriculture.

  2. The pollution of rivers and lakes with industrial chemicals.

  3. The introduction of the cane toad to Australia.

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

Industrialization has led to a loss of genetic diversity through the destruction of rainforests for agriculture, the pollution of rivers and lakes with industrial chemicals, and the introduction of the cane toad to Australia.

Multiple choice

What can be done to mitigate the negative effects of industrialization on genetic diversity?

  1. Conserving natural habitats.

  2. Reducing pollution.

  3. Controlling the spread of invasive species.

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

The negative effects of industrialization on genetic diversity can be mitigated by conserving natural habitats, reducing pollution, and controlling the spread of invasive species.

Multiple choice

Which of the following is NOT a factor that can contribute to the loss of genetic diversity?

  1. Habitat destruction.

  2. Pollution.

  3. Climate change.

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

Selective breeding is a process by which humans breed animals or plants with desirable traits, which can lead to an increase in genetic diversity, not a decrease.

Multiple choice

What are some of the factors that can trigger ancient mass migrations?

  1. Climate change

  2. Habitat loss

  3. Food scarcity

  4. Competition

  5. All of the above
Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

Ancient mass migrations can be triggered by a variety of factors, including climate change, habitat loss, food scarcity, competition, and other environmental changes.

Multiple choice

Which of the following is NOT a benefit of biodiversity?

  1. Increased crop yields

  2. Improved water quality

  3. Reduced soil erosion

  4. Increased risk of disease outbreaks
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Increased risk of disease outbreaks is not a benefit of biodiversity.

Multiple choice

Which of the following is NOT a threat to biodiversity?

  1. Habitat loss

  2. Climate change

  3. Pollution

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

Invasive species are not a threat to biodiversity.

Multiple choice

Which of the following is NOT a threat to pollination?

  1. Habitat loss

  2. Climate change

  3. Pollution

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

Invasive species are not a threat to pollination.

Multiple choice

Which of the following is NOT a benefit of biodiversity?

  1. Increased crop yields

  2. Improved water quality

  3. Reduced soil erosion

  4. Increased risk of disease outbreaks
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Increased risk of disease outbreaks is not a benefit of biodiversity.

Multiple choice

What is the term for the loss of biodiversity due to human activities?

  1. Habitat fragmentation

  2. Invasive species

  3. Pollution

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

Habitat fragmentation is the process by which natural habitats are broken up into smaller and smaller pieces, which can lead to the loss of biodiversity.

Multiple choice

Which of the following is NOT a major threat to coral reefs?

  1. Climate change

  2. Overfishing

  3. Pollution

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

Natural predators are not a major threat to coral reefs.

Multiple choice

Which of the following is a major threat to benthic communities?

  1. Overfishing

  2. Pollution

  3. Climate change

  4. Habitat destruction
Reveal answer Fill a bubble to check yourself
Correct answer
Explanation

Overfishing, pollution, climate change, and habitat destruction are all major threats to benthic communities.

Multiple choice

What is the term used to describe a rapid and significant decrease in the diversity of life on Earth?

  1. Mass Extinction

  2. Global Warming

  3. Deforestation

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

Mass extinction is a relatively rapid and significant decrease in the diversity of life on Earth.