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 primary cause of loss of biodiversity caused by Indian temples?

  1. Habitat destruction

  2. Pollution

  3. Overexploitation

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

All of the above are causes of loss of biodiversity caused by Indian temples.

Multiple choice

Which of the following is NOT a major threat to the ecological balance of rivers and lakes?

  1. Pollution from industrial and agricultural activities

  2. Overexploitation of water resources

  3. Habitat destruction and fragmentation

  4. Natural disasters such as floods and droughts
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

While natural disasters can impact rivers and lakes, they are not considered major threats to their ecological balance. Human activities such as pollution, overexploitation, and habitat destruction pose more significant threats.

Multiple choice

Which of the following is a primary cause of habitat fragmentation in river ecosystems?

  1. Construction of dams and barriers

  2. Deforestation and land use changes

  3. Pollution and water quality degradation

  4. Overfishing and unsustainable fishing practices
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Construction of dams and barriers disrupts the natural flow of rivers, fragmenting habitats and affecting the movement of aquatic organisms.

Multiple choice

Which of the following is NOT a major threat to genetic diversity?

  1. Habitat loss and fragmentation.

  2. Overexploitation.

  3. Climate change.

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

Artificial selection is a human-directed process, while habitat loss and fragmentation, overexploitation, and climate change are natural or human-induced threats to genetic diversity.

Multiple choice

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

  1. Biodiversity Loss

  2. Extinction

  3. Habitat Loss

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

Biodiversity Loss is the term used to describe the loss of biodiversity.

Multiple choice

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

  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 a major cause of biodiversity loss. Habitat Loss, Climate Change, and Pollution are the major causes of biodiversity loss.

Multiple choice

Which of the following is NOT a major threat to biodiversity in India?

  1. Habitat Loss

  2. Climate Change

  3. Pollution

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

Invasive Species is not a major threat to biodiversity in India. Habitat Loss, Climate Change, and Pollution are the major threats to biodiversity in India.

Multiple choice

How does land degradation affect biodiversity?

  1. It reduces the number of species in an area.

  2. It increases the number of invasive species in an area.

  3. It disrupts ecosystem processes.

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

Land degradation can have a range of negative impacts on biodiversity, including reducing the number of species in an area, increasing the number of invasive species, and disrupting ecosystem processes.

Multiple choice

Which of the following is a key threat to marine ecosystems?

  1. Overfishing

  2. Pollution

  3. Climate change

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

Overfishing, pollution, and climate change are all major threats to marine ecosystems and biodiversity.

Multiple choice

How does marine pollution impact marine ecosystems?

  1. It can harm marine life directly through toxicity or ingestion.

  2. It can disrupt marine food webs and ecological processes.

  3. It can accumulate in marine sediments and pose long-term risks.

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

Marine pollution has a range of negative impacts on marine ecosystems, including direct harm to marine life, disruption of ecological processes, and long-term accumulation in sediments.

Multiple choice

How does vegetation affect the biodiversity of an ecosystem?

  1. It increases biodiversity by providing habitat for a variety of species.

  2. It decreases biodiversity by competing with other species for resources.

  3. It has no effect on biodiversity.

  4. It changes the timing of biodiversity.
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Vegetation increases biodiversity by providing habitat for a variety of species, which helps to maintain a healthy ecosystem.

Multiple choice

What is the primary threat to freshwater fish populations globally?

  1. Overfishing

  2. Habitat Loss

  3. Pollution

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

Freshwater fish populations face multiple threats, including overfishing, habitat loss due to human activities, pollution, and the impacts of climate change.

Multiple choice

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

  1. Deforestation

  2. Urbanization

  3. Climate change

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

Reforestation is the process of planting trees in an area that has been deforested or cleared. It is a conservation effort aimed at restoring lost habitat, not a cause of habitat loss.

Multiple choice

Which of the following is NOT a challenge faced by marine conservation efforts?

  1. Overfishing

  2. Plastic pollution

  3. Climate change

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

Deforestation is a challenge faced by terrestrial conservation efforts, not marine conservation efforts.

Multiple choice

Which of the following is NOT a challenge faced by forest conservation efforts?

  1. Deforestation

  2. Climate change

  3. Invasive species

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

Overgrazing is a challenge faced by grassland conservation efforts, not forest conservation efforts.