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

What are the consequences of habitat destruction?

  1. Loss of biodiversity

  2. Climate change

  3. Soil erosion

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

Habitat destruction has a range of consequences, including loss of biodiversity, climate change, and soil erosion.

Multiple choice

How does the loss of keystone species affect ecosystems?

  1. It can lead to a cascade of negative effects on other species

  2. It can disrupt ecosystem processes

  3. It can reduce biodiversity

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

The loss of keystone species can have a ripple effect on ecosystems, leading to a cascade of negative effects on other species, disrupting ecosystem processes, and reducing biodiversity.

Multiple choice

Which marine ecosystem is particularly vulnerable to the impacts of climate change, leading to coral bleaching and reduced biodiversity?

  1. Mangrove forests

  2. Seagrass meadows

  3. Coral reefs

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

Coral reefs are highly susceptible to climate change-induced stressors, such as rising sea temperatures, leading to coral bleaching and a decline in biodiversity.

Multiple choice

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

  1. Reduced growth and survival of shellfish

  2. Enhanced calcification rates in marine organisms

  3. Impaired reproduction and development in marine species

  4. Increased diversity of marine phytoplankton
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Ocean acidification generally leads to reduced calcification rates in marine organisms, making it more difficult for them to build and maintain their calcium carbonate structures.

Multiple choice

Which of the following is NOT a potential consequence of climate change on marine biodiversity?

  1. Increased species richness and diversity

  2. Loss of habitat and fragmentation of marine ecosystems

  3. Shifts in species distribution and abundance

  4. Extinction of vulnerable marine species
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Climate change generally leads to a decline in marine biodiversity, including species richness and diversity, rather than an increase.

Multiple choice

Which of the following is an example of a human activity that can negatively impact the resilience of oceanic environments?

  1. Pollution

  2. Overfishing

  3. Climate change

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

Human activities such as pollution, overfishing, and climate change can all negatively impact the resilience of oceanic environments.

Multiple choice

Which of the following is an example of a human activity that can negatively impact the resilience of oceanic environments?

  1. Pollution

  2. Overfishing

  3. Climate change

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

Human activities such as pollution, overfishing, and climate change can all negatively impact the resilience of oceanic environments.

Multiple choice

What is the difference between an endangered species and a threatened species?

  1. Endangered species are at higher risk of extinction

  2. Threatened species are at higher risk of extinction

  3. Endangered species have smaller populations

  4. Threatened species have smaller populations
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Endangered species are those facing imminent extinction, while threatened species are those likely to become endangered in the foreseeable future.

Multiple choice

What are some of the main threats to endangered and threatened species?

  1. Habitat loss and fragmentation

  2. Overexploitation

  3. Pollution

  4. Climate change

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

Endangered and threatened species face a variety of threats, including habitat loss and fragmentation, overexploitation, pollution, climate change, and other human-induced factors.

Multiple choice

How does land use change affect biodiversity?

  1. It can lead to the loss of habitat for plants and animals.

  2. It can lead to the introduction of invasive species.

  3. It can lead to changes in the food chain.

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

Land use change can lead to the loss of habitat for plants and animals, the introduction of invasive species, and changes in the food chain.

Multiple choice

Which of the following is NOT a threat to polar ecosystems?

  1. Climate change

  2. Pollution

  3. Overfishing

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

Overfishing is not a threat to polar ecosystems. It is a threat to marine ecosystems in general, but it does not occur in polar regions.

Multiple choice

Which of the following is not a challenge to wildlife conservation in India?

  1. Habitat loss and fragmentation

  2. Climate change

  3. Pollution

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

Overpopulation is not a challenge to wildlife conservation in India.

Multiple choice

What is the primary cause of the decline in Sumatran Rhino populations?

  1. Habitat destruction

  2. Poaching

  3. Disease

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

Poaching for their horns, which are highly valued in traditional medicine, is the primary cause of the decline in Sumatran Rhino populations.

Multiple choice

What is the main threat to the survival of the Javan Rhinoceros?

  1. Habitat loss

  2. Poaching

  3. Disease

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

Poaching for its horn, which is believed to have medicinal properties, is the primary threat to the survival of the Javan Rhinoceros.

Multiple choice

What is the main threat to the survival of the critically endangered Vaquita porpoise?

  1. Bycatch in fishing nets

  2. Habitat loss

  3. Pollution

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

The Vaquita porpoise is critically endangered primarily due to bycatch in fishing nets, particularly in gillnets used for catching shrimp and fish.