Environmental Studies · 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 factor that affects the rate of species extinction on an island?

  1. Island size

  2. Distance from the mainland

  3. Habitat diversity

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

Predation pressure is not a factor that directly affects the rate of species extinction on an island, although it can influence the abundance and distribution of species.

Multiple choice

Which of the following is NOT a factor that affects the rate of species immigration to an island?

  1. Distance from the mainland

  2. Habitat diversity

  3. Predation pressure

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

Predation pressure is not a factor that directly affects the rate of species immigration to an island, although it can influence the survival of immigrants.

Multiple choice

Which of the following is a major threat to biodiversity?

  1. Habitat Loss

  2. Climate Change

  3. Pollution

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

Habitat loss, climate change, pollution, and invasive species are all significant threats to biodiversity, contributing to the decline of species and ecosystems.

Multiple choice

What is the primary reason for the decline in Adélie penguin populations in Antarctica?

  1. Habitat loss due to melting ice shelves

  2. Increased predation by killer whales

  3. Competition with other penguin species

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

The loss of sea ice due to climate change has reduced the availability of suitable breeding and feeding habitats for Adélie penguins, leading to population declines.

Multiple choice

What is the primary threat to the survival of polar bears due to climate change?

  1. Habitat loss due to melting sea ice

  2. Increased predation by killer whales

  3. Competition with other polar bear populations

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

The loss of sea ice due to climate change is the primary threat to polar bears, as it reduces their hunting and breeding opportunities and disrupts their traditional migration patterns.

Multiple choice

Which of the following is a potential ecological impact of stone quarrying?

  1. Habitat loss

  2. Fragmentation

  3. Edge effects

  4. Invasive species introduction
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Stone quarrying can result in the loss of natural habitats, including forests, grasslands, and wetlands. This can have a negative impact on local wildlife, as it reduces the availability of food, shelter, and breeding grounds.

Multiple choice

How does deforestation contribute to loss of biodiversity?

  1. It destroys habitats for plants and animals

  2. It reduces the genetic diversity of species

  3. It increases the risk of extinction for species

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

Deforestation contributes to loss of biodiversity by destroying habitats for plants and animals, reducing the genetic diversity of species, and increasing the risk of extinction for species.

Multiple choice

Which of the following is a potential ecological impact of peridotite quarrying?

  1. Habitat loss

  2. Fragmentation of habitat

  3. Disruption of migration routes

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

Peridotite quarrying can have a number of ecological impacts, including habitat loss, fragmentation of habitat, and disruption of migration routes. These impacts can negatively affect plant and animal populations, and can lead to a decline in biodiversity.

Multiple choice

Which of the following is an example of a climate change impact on biodiversity?

  1. Habitat Loss and Fragmentation

  2. Shifts in Species Distribution

  3. Increased Extinction Rates

  4. Changes in Phenology
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Climate change can lead to habitat loss and fragmentation, which can have negative impacts on biodiversity.

Multiple choice

What is the 'Tragedy of the Commons'?

  1. The overexploitation of a shared resource by individuals acting in their own self-interest

  2. The depletion of a natural resource due to population growth

  3. The pollution of a common resource due to industrialization

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

The 'Tragedy of the Commons' refers to the situation where individuals acting in their own self-interest overuse a shared resource, leading to its depletion or degradation.

Multiple choice

Which of the following is NOT a major threat to endangered species?

  1. Habitat loss

  2. Overexploitation

  3. Climate change

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

Pollution is not a major threat to endangered species, although it can have negative impacts on their habitats and food sources.

Multiple choice

What is the main cause of habitat loss for endangered species?

  1. Agriculture

  2. Deforestation

  3. Urbanization

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

All of the above are major causes of habitat loss for endangered species.

Multiple choice

What are some of the challenges facing endangered species conservation?

  1. Habitat loss

  2. Overexploitation

  3. Climate change

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

All of the above are challenges facing endangered species conservation.

Multiple choice

What is the main threat to mangrove ecosystems worldwide?

  1. Deforestation

  2. Climate change

  3. Pollution

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

Mangrove ecosystems face multiple threats, including deforestation for coastal development, climate change-induced sea-level rise, and pollution from various sources.

Multiple choice

Which of the following is NOT a key ecosystem service?

  1. Pollination

  2. Carbon sequestration

  3. Biodiversity

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

Air pollution is not an ecosystem service. It is a negative consequence of human activities that can harm ecosystems and human health.