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 NOT a major threat to coral reefs?

  1. Climate change

  2. Overfishing

  3. Pollution

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

Volcanic eruptions are not a major threat to coral reefs. The primary threats to coral reefs include climate change, overfishing, pollution, and coastal development.

Multiple choice

Which of the following is NOT a major challenge in conserving coral reefs?

  1. Climate change

  2. Pollution

  3. Overfishing

  4. Lack of public awareness
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Lack of public awareness is not a major challenge in conserving coral reefs. The major challenges in conserving coral reefs include climate change, pollution, and overfishing.

Multiple choice

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

  1. Climate Change

  2. Overfishing

  3. Pollution

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

Volcanic activity is not a major threat to coral reefs, although it can cause localized damage.

Multiple choice

Which of the following is NOT a major cause of coral bleaching?

  1. Elevated Sea Temperatures

  2. Pollution

  3. Overfishing

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

Natural predators are not a major cause of coral bleaching.

Multiple choice

How does marine deoxygenation affect marine life?

  1. It can cause mass mortalities of marine organisms.

  2. It can disrupt marine food webs.

  3. It can lead to the loss of biodiversity.

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

Marine deoxygenation can have a range of negative impacts on marine life, including mass mortalities, disruption of food webs, and loss of biodiversity.

Multiple choice

Which of the following is NOT a common threat to wetland ecosystems?

  1. Pollution

  2. Climate change

  3. Invasive species

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

Natural succession is a natural process of ecological change, not a threat to wetland ecosystems. Pollution, climate change, and invasive species are major threats that can disrupt the delicate balance of these ecosystems.

Multiple choice

Which type of mining is known for causing significant land degradation and habitat loss?

  1. Surface mining

  2. Underground mining

  3. Open-pit mining

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

Open-pit mining involves the removal of large amounts of soil and rock to expose mineral deposits, resulting in extensive land degradation and habitat loss.

Multiple choice

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

  1. Climate change

  2. Overgrazing

  3. Invasive species

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

Climate change, overgrazing, and invasive species are all major threats to forest ecosystems, contributing to deforestation, habitat loss, and biodiversity decline.

Multiple choice

Which of the following is NOT a strategy for reducing the vulnerability of coastal wetlands to climate change?

  1. Restoring and protecting coastal wetlands.

  2. Reducing greenhouse gas emissions.

  3. Building seawalls and other hard structures.

  4. Relocating coastal communities away from wetlands.
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Relocating coastal communities away from wetlands is not a strategy for reducing the vulnerability of coastal wetlands to climate change. It is a strategy for reducing the risk to human communities from coastal hazards, but it does not address the underlying problem of wetland vulnerability.

Multiple choice

What is the most important thing that can be done to reduce the vulnerability of coastal wetlands to climate change?

  1. Reduce greenhouse gas emissions.

  2. Restore and protect coastal wetlands.

  3. Build seawalls and other hard structures.

  4. Relocate coastal communities away from wetlands.
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Reducing greenhouse gas emissions is the most important thing that can be done to reduce the vulnerability of coastal wetlands to climate change. This will help to slow the rate of sea-level rise and reduce the frequency and intensity of storm surges and other coastal hazards.

Multiple choice

What is the role of coastal wetlands in mitigating the effects of climate change?

  1. They can help to reduce the impacts of storm surges and flooding.

  2. They can help to filter pollutants from the water.

  3. They can help to sequester carbon dioxide from the atmosphere.

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

Coastal wetlands can help to mitigate the effects of climate change in a number of ways, including reducing the impacts of storm surges and flooding, filtering pollutants from the water, and sequestering carbon dioxide from the atmosphere.

Multiple choice

What is the future of coastal wetlands?

  1. They are likely to be lost due to climate change.

  2. They can be protected and restored.

  3. It is uncertain.

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

The future of coastal wetlands is uncertain. They are likely to be lost due to climate change, but they can also be protected and restored. It is important to take action to reduce greenhouse gas emissions and protect and restore coastal wetlands so that they can continue to provide their many benefits.

Multiple choice

Which human activity is considered a major threat to marine biodiversity?

  1. Overfishing

  2. Pollution

  3. Climate change

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

Overfishing, pollution, and climate change are all major threats to marine biodiversity, leading to the decline of marine populations and ecosystems.

Multiple choice

What are some of the threats to marine cultural heritage?

  1. Climate change and ocean acidification

  2. Pollution and marine debris

  3. Unsustainable fishing practices

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

Marine cultural heritage faces threats from climate change and ocean acidification, pollution and marine debris, unsustainable fishing practices, and other human activities.

Multiple choice

What are some of the potential risks of space exploration for indigenous peoples?

  1. Displacement from traditional lands

  2. Loss of cultural heritage

  3. Environmental degradation

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

Space exploration has the potential to displace indigenous peoples from their traditional lands, lead to the loss of cultural heritage, and cause environmental degradation.