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 main environmental impact of dams?

  1. They can disrupt the natural flow of water

  2. They can lead to the loss of habitat for aquatic species

  3. They can increase the risk of flooding downstream

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

Dams can have a number of negative environmental impacts, including disrupting the natural flow of water, leading to the loss of habitat for aquatic species, and increasing the risk of flooding downstream.

Multiple choice

How does deforestation contribute to the loss of biodiversity?

  1. It reduces the habitat available for wildlife.

  2. It disrupts ecological interactions and food webs.

  3. It leads to the extinction of plant and animal species.

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

Deforestation has multiple negative impacts on biodiversity, including habitat loss, disruption of ecological interactions, and increased risk of species extinction.

Multiple choice

What is the primary threat to the survival of coral reefs worldwide?

  1. Overfishing

  2. Pollution

  3. Climate Change

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

Climate change, particularly rising sea temperatures and ocean acidification, poses a significant threat to coral reefs worldwide, causing coral bleaching and disrupting the delicate balance of these ecosystems.

Multiple choice

What is the process by which coral reefs are damaged and lose their vibrant colors due to stress factors?

  1. Coral Bleaching

  2. Coral Spawning

  3. Coral Fragmentation

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

Coral bleaching occurs when corals expel the symbiotic algae that provide them with nutrients and color, causing them to turn white. This process is often triggered by stress factors such as elevated sea temperatures, pollution, or disease.

Multiple choice

Which of the following is NOT a major threat to national parks and wildlife sanctuaries in India?

  1. Poaching

  2. Habitat loss

  3. Climate change

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

Tourism, while it can have negative impacts on national parks and wildlife sanctuaries, is not generally considered to be a major threat to these areas.

Multiple choice

Which of the following is a major cause of habitat loss in national parks and wildlife sanctuaries?

  1. Deforestation

  2. Mining

  3. Agriculture

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

Deforestation, mining, and agriculture are all major causes of habitat loss in national parks and wildlife sanctuaries.

Multiple choice

Which of the following is a major threat to wildlife in national parks and wildlife sanctuaries?

  1. Poaching

  2. Habitat loss

  3. Disease

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

Poaching, habitat loss, and disease are all major threats to wildlife in national parks and wildlife sanctuaries.

Multiple choice

What are some of the challenges facing national parks and wildlife sanctuaries in India?

  1. Poaching

  2. Habitat loss

  3. Climate change

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

Poaching, habitat loss, and climate change are all major challenges facing national parks and wildlife sanctuaries in India.

Multiple choice

Which of the following is NOT a potential consequence of climate change-related natural disasters on ecosystems?

  1. Loss of biodiversity

  2. Habitat destruction

  3. Changes in species distribution

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

Climate change-related natural disasters can lead to loss of biodiversity, habitat destruction, and changes in species distribution, but they do not improve ecosystem health.

Multiple choice

Which of the following is NOT a cause of genetic erosion?

  1. Habitat loss

  2. Fragmentation

  3. Overexploitation

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

Gene flow is not a cause of genetic erosion. Habitat loss, fragmentation, and overexploitation are all causes of genetic erosion.

Multiple choice

Which of the following is a major threat to the biodiversity of the Western Ghats?

  1. Deforestation

  2. Climate change

  3. Pollution

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

Deforestation, climate change, and pollution are all major threats to the biodiversity of the Western Ghats.

Multiple choice

What are some of the challenges faced by wildlife sanctuaries and national parks in fulfilling their cultural significance?

  1. Encroachment and habitat loss due to human activities.

  2. Poaching and illegal wildlife trade.

  3. Climate change and its impacts on ecosystems.

  4. Insufficient funding and resources for conservation efforts.
Reveal answer Fill a bubble to check yourself
Correct answer
Explanation

Wildlife sanctuaries and national parks face a number of challenges in fulfilling their cultural significance, including encroachment and habitat loss due to human activities, poaching and illegal wildlife trade, climate change and its impacts on ecosystems, and insufficient funding and resources for conservation efforts.

Multiple choice

Mass extinctions are:

  1. Events in which a large number of species become extinct in a short period of time

  2. Events in which a large number of species become extinct over a long period of time

  3. Events in which a small number of species become extinct in a short period of time

  4. Events in which a small number of species become extinct over a long period of time
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Mass extinctions are events in which a large number of species become extinct in a short period of time, typically due to a catastrophic event such as an asteroid impact or a volcanic eruption.

Multiple choice

How does deforestation affect biodiversity?

  1. Loss of Habitat

  2. Reduced Genetic Diversity

  3. Increased Species Extinction

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

Deforestation results in loss of habitat, reduced genetic diversity, and increased species extinction, posing a significant threat to biodiversity.

Multiple choice

Which of the following is a potential impact of mining on biodiversity?

  1. Habitat Loss

  2. Pollution

  3. Invasive Species

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

Habitat loss is a potential impact of mining on biodiversity. Mining activities can destroy or fragment natural habitats, leading to the loss of biodiversity and the displacement of wildlife.