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 a key factor influencing the resilience of lake environments?

  1. Water quality

  2. Biodiversity

  3. Climate

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

The resilience of lake environments is influenced by a combination of factors, including water quality, biodiversity, climate, and human activities.

Multiple choice

How does biodiversity affect the resilience of lake environments?

  1. Biodiversity can help to maintain the balance of the ecosystem

  2. Biodiversity can help to reduce the impact of disturbances

  3. Biodiversity can help to improve water quality

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

Biodiversity plays a crucial role in the resilience of lake environments by helping to maintain the balance of the ecosystem, reducing the impact of disturbances, and improving water quality.

Multiple choice

What are some of the emerging threats to the resilience of lake environments?

  1. Climate change

  2. Invasive species

  3. Pollution

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

Lake environments are facing a number of emerging threats to their resilience, including climate change, invasive species, and pollution.

Multiple choice

Which of the following is NOT a potential consequence of the introduction and spread of marine invasive species?

  1. Competition with native species for resources

  2. Transmission of diseases to native species

  3. Alteration of marine food webs

  4. Enhanced biodiversity in marine ecosystems
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The introduction and spread of marine invasive species typically leads to negative consequences for native species and ecosystems. Enhanced biodiversity is not a common outcome of this process.

Multiple choice

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

  1. Overfishing

  2. Pollution

  3. Climate Change

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

While tourism can impact coral reefs, it is not considered a major threat compared to overfishing, pollution, and climate change.

Multiple choice

Which of the following is NOT a major threat to island ecosystems?

  1. Invasive Species

  2. Deforestation

  3. Habitat Loss

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

While climate change is a major threat to coral reefs, it is not considered a direct threat to island ecosystems.

Multiple choice

Which factor is considered to be the primary driver of species extinction in recent times?

  1. Habitat loss and fragmentation

  2. Climate change

  3. Overexploitation of natural resources

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

Habitat loss and fragmentation are considered to be the primary drivers of species extinction in recent times, as they disrupt ecological processes and reduce the availability of resources for wildlife.

Multiple choice

Which of the following is NOT a threat to wetlands and mangroves?

  1. Deforestation

  2. Pollution

  3. Climate change

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

Deforestation, pollution, and climate change are major threats to wetlands and mangroves. Conservation efforts, on the other hand, aim to protect and restore these ecosystems.

Multiple choice

Which of the following is NOT a challenge in conserving and restoring wetlands and mangroves?

  1. Habitat fragmentation

  2. Climate change impacts

  3. Pollution

  4. Public support for conservation efforts
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Habitat fragmentation, climate change impacts, and pollution are major challenges in conserving and restoring wetlands and mangroves. Public support for conservation efforts is generally positive and not considered a challenge.

Multiple choice

Which of the following is a major threat to grasslands?

  1. Climate change

  2. Overgrazing

  3. Invasive species

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

Climate change, overgrazing, invasive species, and deforestation are all major threats to grasslands.

Multiple choice

How do invasive species affect grasslands?

  1. Compete with native plants for resources

  2. Alter ecosystem processes

  3. Increase the risk of fire

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

Invasive species can have a number of negative impacts on grasslands, including competing with native plants for resources, altering ecosystem processes, increasing the risk of fire, and reducing biodiversity.

Multiple choice

What is the primary threat to coral reefs in India?

  1. Climate change

  2. Pollution

  3. Overfishing

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

Climate change, particularly rising sea temperatures, poses the most significant threat to coral reefs in India, leading to coral bleaching and degradation.

Multiple choice

What is the primary cause of coral reef degradation in the Gulf of Mannar Marine National Park?

  1. Climate change

  2. Pollution

  3. Overfishing

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

Pollution from various sources, including sewage, industrial effluents, and agricultural runoff, poses a significant threat to coral reefs in the Gulf of Mannar Marine National Park.

Multiple choice

How does hydropower impact aquatic ecosystems?

  1. It can disrupt fish migration patterns.

  2. It can alter water temperature and flow patterns.

  3. It can lead to the loss of aquatic habitat.

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

Hydropower projects can disrupt fish migration patterns, alter water temperature and flow patterns, and lead to the loss of aquatic habitat.

Multiple choice

Which of the following is a major factor contributing to biodiversity loss?

  1. Habitat destruction

  2. Climate change

  3. Pollution

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

Habitat destruction, climate change, and pollution are all major factors contributing to biodiversity loss.