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 key threat to biodiversity?

  1. Habitat loss and fragmentation.

  2. Climate change.

  3. Pollution.

  4. Sustainable agriculture practices.
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Sustainable agriculture practices, such as organic farming and agroforestry, promote biodiversity by reducing the use of harmful chemicals and preserving natural habitats.

Multiple choice

Which of the following is NOT a consequence of the loss of regulating services?

  1. Increased frequency and severity of natural disasters

  2. Reduced availability of clean water

  3. Loss of biodiversity

  4. Increased agricultural productivity
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The loss of regulating services typically leads to negative consequences, such as increased natural disasters, reduced water availability, and loss of biodiversity. Increased agricultural productivity is not a direct consequence of the loss of regulating services.

Multiple choice

Which of the following is NOT a potential consequence of environmental degradation?

  1. Increased risk of disease

  2. Loss of biodiversity

  3. Economic losses

  4. Improved quality of life
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Environmental degradation can lead to a number of negative consequences, including increased risk of disease, loss of biodiversity, and economic losses. It does not lead to improved quality of life.

Multiple choice

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

  1. Habitat fragmentation

  2. Extinction

  3. Climate change

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

Extinction is the term used to describe the loss of biodiversity. It occurs when a species is no longer able to survive and reproduce in its environment, and its population declines until it eventually disappears.

Multiple choice

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

  1. Climate change

  2. Habitat loss

  3. Pollution

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

Pollution is not a major threat to biodiversity in the same way that climate change, habitat loss, and invasive species are. While pollution can have negative impacts on individual species and ecosystems, it is not a primary driver of biodiversity loss.

Multiple choice

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

  1. Deforestation

  2. Urbanization

  3. Agriculture

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

Climate change is not a major cause of habitat loss in the same way that deforestation, urbanization, and agriculture are. While climate change can lead to changes in habitat, it is not a primary driver of habitat loss.

Multiple choice

Which human activity is considered a major threat to ecosystem conservation?

  1. Habitat destruction and fragmentation.

  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 significant threats to ecosystem conservation, as they disrupt ecological processes, reduce biodiversity, and degrade the overall health and functioning of ecosystems.

Multiple choice

How does soil contamination affect the diversity of plant species in an ecosystem?

  1. It increases plant diversity.

  2. It decreases plant diversity.

  3. It has no effect on plant diversity.

  4. It increases the diversity of some plant species but decreases the diversity of others.
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Soil contamination can reduce the number of plant species that are able to tolerate the contaminated conditions.

Multiple choice

Which of the following is NOT a common health effect of environmental toxins in ecosystems?

  1. Reduced biodiversity

  2. Altered food webs

  3. Increased productivity

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

Increased productivity is not a common health effect of environmental toxins in ecosystems.

Multiple choice

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

  1. Agriculture

  2. Urbanization

  3. Climate Change

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

While natural disasters can cause habitat loss, they are not a major cause compared to human activities such as agriculture and urbanization.

Multiple choice

What is the primary consequence of habitat loss for wildlife?

  1. Loss of Food and Shelter

  2. Increased Competition for Resources

  3. Reduced Genetic Diversity

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

Habitat loss leads to a loss of food and shelter for wildlife, increased competition for resources as animals are forced to live in smaller areas, and reduced genetic diversity as populations become isolated.

Multiple choice

What are the consequences of losing functional redundancy?

  1. It can lead to ecosystem collapse

  2. It can increase the risk of species extinctions

  3. It can reduce the efficiency of resource use

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

Losing functional redundancy can have a number of negative consequences, including ecosystem collapse, increased risk of species extinctions, and reduced efficiency of resource use.

Multiple choice

What are some factors that can lead to the loss of functional redundancy?

  1. Habitat loss

  2. Pollution

  3. Climate change

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

A number of factors can lead to the loss of functional redundancy, including habitat loss, pollution, climate change, and invasive species.

Multiple choice

Which of the following is NOT a potential consequence of losing functional redundancy in an ecosystem?

  1. Increased vulnerability to environmental change

  2. Reduced efficiency of resource use

  3. Increased risk of species extinctions

  4. Enhanced ecosystem resilience
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Losing functional redundancy in an ecosystem can lead to increased vulnerability to environmental change, reduced efficiency of resource use, and increased risk of species extinctions, but it does not enhance ecosystem resilience.

Multiple choice

What is habitat loss?

  1. The reduction or destruction of natural habitats due to human activities.

  2. The fragmentation of natural habitats into smaller, isolated patches.

  3. The degradation of natural habitats due to pollution or climate change.

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

Habitat loss refers to the reduction or destruction of natural habitats due to human activities, such as deforestation, urbanization, agriculture, and mining. It can also involve the fragmentation of natural habitats into smaller, isolated patches, which can have negative consequences for species that rely on large, continuous habitats. Additionally, habitat loss can occur due to the degradation of natural habitats caused by pollution or climate change, which can make them unsuitable for certain species.