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

How does overfishing impact marine ecosystems?

  1. Disrupts food webs

  2. Reduces biodiversity

  3. Degrades habitat quality

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

Overfishing can have severe consequences for marine ecosystems, including disrupting food webs, reducing biodiversity, and degrading habitat quality, ultimately leading to ecosystem collapse.

Multiple choice

What is the term used to describe the loss of biodiversity?

  1. Extinction

  2. Deforestation

  3. Pollution

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

Extinction is the term used to describe the loss of biodiversity, referring to the disappearance of species from the Earth.

Multiple choice

What is the primary cause of bycatch in fishing operations?

  1. Overfishing

  2. Illegal fishing practices

  3. Use of non-selective fishing gear

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

Non-selective fishing gear, such as trawls and gillnets, are designed to capture a wide range of species, including non-target species.

Multiple choice

How does bycatch impact marine ecosystems?

  1. It disrupts food webs.

  2. It reduces biodiversity.

  3. It contributes to overfishing.

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

Bycatch can have a range of negative impacts on marine ecosystems, including disrupting food webs, reducing biodiversity, and contributing to overfishing.

Multiple choice

How can bycatch affect the population dynamics of marine species?

  1. It can lead to population declines.

  2. It can disrupt reproductive cycles.

  3. It can alter predator-prey relationships.

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

Bycatch can have a range of negative impacts on the population dynamics of marine species, including population declines, disruption of reproductive cycles, and alteration of predator-prey relationships.

Multiple choice

What are some of the economic consequences of bycatch?

  1. Loss of revenue for fishers

  2. Increased costs for seafood consumers

  3. Negative impacts on tourism and recreation

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

Bycatch can have a range of economic consequences, including loss of revenue for fishers, increased costs for seafood consumers, and negative impacts on tourism and recreation.

Multiple choice

What is the term used to describe the loss of biodiversity?

  1. Deforestation

  2. Pollution

  3. Climate change

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

Extinction is the term used to describe the loss of biodiversity. It occurs when a species is no longer able to survive and reproduce in its environment.

Multiple choice

Which of the following is NOT a major cause of biodiversity loss?

  1. Habitat destruction

  2. Pollution

  3. Climate change

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

Natural selection is not a major cause of biodiversity loss. The three major causes of biodiversity loss are habitat destruction, pollution, and climate change.

Multiple choice

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

  1. Endangered species

  2. Threatened species

  3. Vulnerable species

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

Endangered species is the term used to describe a species that is at risk of extinction.

Multiple choice

Which human activity is a major contributor to the decline of coral reefs worldwide?

  1. Overfishing

  2. Pollution

  3. Climate Change

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

Climate change, particularly rising sea temperatures and ocean acidification, is a significant threat to coral reefs worldwide.

Multiple choice

What is the primary concern regarding icebergs in relation to shipping and navigation?

  1. Collision hazards

  2. Melting and sea level rise

  3. Climate change impacts

  4. Habitat loss for polar wildlife
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Icebergs pose a significant collision hazard to ships and vessels, especially in polar regions where they are abundant.

Multiple choice

Which of these is NOT a common threat to wildlife and natural habitats?

  1. Habitat loss

  2. Climate change

  3. Pollution

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

Overpopulation is not typically considered a direct threat to wildlife and natural habitats, although it can indirectly contribute to habitat loss and resource depletion.

Multiple choice

Which of the following is an example of a habitat that is threatened by climate change?

  1. Coral reefs

  2. Rainforests

  3. Arctic sea ice

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

Coral reefs, rainforests, and Arctic sea ice are all habitats that are threatened by climate change. Coral reefs are threatened by rising sea temperatures, which can cause coral bleaching and death. Rainforests are threatened by deforestation and climate change, which can lead to changes in precipitation patterns and increased temperatures. Arctic sea ice is threatened by rising temperatures, which is causing the ice to melt.

Multiple choice

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

  1. Habitat destruction

  2. Climate change

  3. Pollution

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

Habitat destruction is the term for the loss of biodiversity due to human activities, such as deforestation, urbanization, and pollution.

Multiple choice

Which of the following is NOT a consequence of habitat destruction?

  1. Loss of biodiversity

  2. Increased risk of flooding

  3. Improved air quality

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

Habitat destruction can lead to loss of biodiversity, increased risk of flooding, and soil erosion, but it does not improve air quality.