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 human activity is considered to be the primary cause of biodiversity loss?

  1. Climate change

  2. Habitat destruction

  3. Pollution

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

Habitat destruction, such as deforestation, urbanization, and agriculture, is the leading cause of biodiversity loss as it directly removes or fragments the natural habitats of species.

Multiple choice

Which human activity is a major contributor to climate change, which is a significant threat to biodiversity?

  1. Renewable energy production

  2. Sustainable agriculture

  3. Fossil fuel burning

  4. Electric vehicle usage
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Fossil fuel burning, particularly for energy production and transportation, releases greenhouse gases into the atmosphere, contributing to climate change.

Multiple choice

Which type of habitat is particularly vulnerable to habitat destruction and fragmentation?

  1. Grasslands

  2. Forests

  3. Wetlands

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

Wetlands, such as marshes, swamps, and bogs, are particularly vulnerable to habitat destruction and fragmentation due to their unique hydrology and sensitivity to changes in water levels.

Multiple choice

Which human activity is a major threat to coral reefs, which are hotspots of marine biodiversity?

  1. Overfishing

  2. Climate change

  3. Pollution

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

Climate change, particularly rising sea temperatures and ocean acidification, is a major threat to coral reefs as it causes coral bleaching and reduces their resilience to other stressors.

Multiple choice

Which human activity is a major threat to migratory species, such as birds and whales?

  1. Habitat destruction

  2. Overexploitation

  3. Pollution

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

Climate change, particularly changes in temperature, precipitation patterns, and sea levels, can disrupt migratory routes and breeding grounds, posing a significant threat to migratory species.

Multiple choice

What is the term used to describe the process by which species become increasingly rare and at risk of extinction?

  1. Endangerment

  2. Vulnerability

  3. Threatened

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

Endangerment refers to the status of a species that is at risk of extinction due to various factors such as habitat loss, overexploitation, or climate change.

Multiple choice

Which human activity is a major threat to biodiversity in freshwater ecosystems?

  1. Dams and water diversions

  2. Pollution

  3. Overfishing

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

Dams and water diversions can fragment and alter freshwater ecosystems, disrupting natural water flows and affecting the survival of aquatic species.

Multiple choice

Which human activity is a major threat to biodiversity in urban environments?

  1. Habitat destruction

  2. Pollution

  3. Climate change

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

Habitat destruction, particularly through urbanization and development, is a major threat to biodiversity in urban environments as it reduces the availability of natural habitats for species.

Multiple choice

What is the primary cause of coral bleaching, a major threat to coral reefs worldwide?

  1. Increased sea surface temperatures due to climate change

  2. Overfishing and destructive fishing practices

  3. Pollution and nutrient runoff from land-based sources

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

Increased sea surface temperatures due to climate change are the primary cause of coral bleaching, which can lead to coral death and the degradation of coral reef ecosystems.

Multiple choice

Which of the following is a major threat to forest ecosystems worldwide?

  1. Climate Change

  2. Pollution

  3. Habitat Fragmentation

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

Climate change, pollution, and habitat fragmentation are all major threats to forest ecosystems, leading to biodiversity loss, changes in forest structure and function, and increased vulnerability to disturbances.

Multiple choice

Which of the following is NOT a primary cause of habitat loss?

  1. Urbanization

  2. Climate Change

  3. Deforestation

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

While natural disasters can impact habitats, they are not a primary cause of habitat loss. Human activities such as urbanization, deforestation, and agriculture are the main drivers of habitat loss.

Multiple choice

How does habitat fragmentation affect the provision and maintenance of supporting services?

  1. It can lead to the loss of supporting services

  2. It can make supporting services less effective

  3. It can increase the cost of providing supporting services

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

Habitat fragmentation can affect the provision and maintenance of supporting services in a number of ways. It can lead to the loss of supporting services, make supporting services less effective, and increase the cost of providing supporting services.

Multiple choice

What are the potential consequences of ocean acidification?

  1. Coral bleaching

  2. Shellfish die-offs

  3. Reduced biodiversity

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

Ocean acidification can lead to coral bleaching, shellfish die-offs, and reduced biodiversity.

Multiple choice

What are the potential consequences of ocean alkalinization?

  1. Increased coral growth

  2. Reduced biodiversity

  3. Ocean acidification

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

Ocean alkalinization does not have any significant negative consequences.

Multiple choice

What are the potential consequences of ocean neutralization?

  1. Increased biodiversity

  2. Reduced coral growth

  3. Ocean acidification

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

Ocean neutralization does not have any significant negative consequences.