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

Which of the following is NOT a potential consequence of ocean acidification for marine ecosystems?

  1. Damage to coral reefs.

  2. Reduced availability of food for marine organisms.

  3. Increased biodiversity in marine ecosystems.

  4. More acidic conditions in the ocean.
Reveal answer Fill a bubble to check yourself
Correct answer
Explanation

Ocean acidification is generally expected to have negative consequences for marine ecosystems, such as damage to coral reefs and reduced availability of food for marine organisms. Increased biodiversity in marine ecosystems is not a potential consequence of ocean acidification.

Multiple choice

Which of the following is an example of a threatened ecosystem?

  1. The Amazon rainforest

  2. The Great Barrier Reef

  3. The Serengeti

  4. The Arctic tundra
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

A threatened ecosystem is an ecosystem that is at risk of being destroyed or degraded. The Amazon rainforest is an example of a threatened ecosystem because it is being cleared for logging, agriculture, and mining.

Multiple choice

What is the ethical significance of the loss of biodiversity?

  1. The loss of biodiversity has no ethical implications

  2. The loss of biodiversity reduces the resilience of ecosystems and threatens human well-being

  3. The loss of biodiversity is a natural process and does not warrant any ethical concern

  4. The loss of biodiversity is a minor issue compared to other global problems
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The loss of biodiversity has significant ethical implications because it reduces the resilience of ecosystems, threatens human well-being, and undermines the intrinsic value of nature. It raises questions about our responsibility to protect biodiversity and to ensure a sustainable future for all.

Multiple choice

Which of the following is NOT a negative impact of coastal and marine tourism?

  1. Pollution

  2. Overfishing

  3. Habitat destruction

  4. Increased awareness of marine conservation
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Increased awareness of marine conservation is a positive impact of coastal and marine tourism.

Multiple choice

Which of the following is NOT a benefit of coastal and marine ecosystems to humans?

  1. Food

  2. Medicine

  3. Recreation

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

Climate regulation is not a direct benefit of coastal and marine ecosystems to humans.

Multiple choice

What is the primary cause of species extinction today?

  1. Habitat loss and fragmentation

  2. Climate change

  3. Pollution

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

Habitat loss and fragmentation is the leading cause of species extinction today, as it destroys and degrades natural habitats, making it difficult for species to survive.

Multiple choice

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

  1. Extinction

  2. Habitat loss

  3. Climate change

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

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

Multiple choice

Which of the following is not a threat to endangered species?

  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 are not a threat to endangered species, as they are not a natural part of the ecosystem and can compete with native species for resources.

Multiple choice

Which of the following is NOT a potential ecological impact of mining and quarrying?

  1. Habitat destruction

  2. Biodiversity loss

  3. Water scarcity

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

Climate change is not a direct ecological impact of mining and quarrying, but it can be an indirect impact due to the release of greenhouse gases during mining and quarrying operations.

Multiple choice

Which of the following is NOT a benefit of biodiversity?

  1. Increased ecosystem resilience

  2. Enhanced ecosystem productivity

  3. Reduced risk of disease outbreaks

  4. Increased food security
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Reduced risk of disease outbreaks is not a benefit of biodiversity, but rather a benefit of ecosystem services provided by biodiversity.

Multiple choice

What is the impact of migration on the environment?

  1. It can lead to deforestation and habitat loss

  2. It can increase pollution and resource depletion

  3. It can contribute to climate change

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

Migration can have a negative impact on the environment by leading to deforestation and habitat loss, increasing pollution and resource depletion, and contributing to climate change.

Multiple choice

What is the primary cause of species extinction in recent times?

  1. Habitat Loss and Fragmentation

  2. Climate Change

  3. Pollution

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

Habitat loss and fragmentation, primarily driven by human activities such as deforestation, urbanization, and agriculture, is the leading cause of species extinction in recent times.

Multiple choice

Which of the following is a major threat to coral reefs worldwide?

  1. Overfishing

  2. Climate change

  3. Pollution

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

Coral reefs face multiple threats, including overfishing, climate change-induced ocean acidification and warming, and pollution from various sources.

Multiple choice

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

  1. Habitat destruction.

  2. Pollution.

  3. Climate change.

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

Extinction refers to the irreversible loss of a species from the Earth, often as a result of human activities and environmental changes.

Multiple choice

Which of the following is NOT a benefit of biodiversity?

  1. Increased resilience to environmental changes.

  2. Enhanced ecosystem services.

  3. Reduced risk of natural disasters.

  4. Increased pollution levels.
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Biodiversity contributes to ecosystem stability and resilience, providing numerous benefits such as clean air and water, pollination, and protection from natural disasters.