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

Which of the following is NOT a primary driver of biodiversity loss?

  1. Habitat destruction

  2. Climate change

  3. Invasive species

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

While natural disasters can impact biodiversity, they are not considered a primary driver of biodiversity loss compared to human activities such as habitat destruction, climate change, and invasive species.

Multiple choice

Biodiversity loss can lead to which of the following consequences?

  1. Increased ecosystem resilience

  2. Reduced food security

  3. Enhanced water quality

  4. Improved air quality
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Biodiversity loss often results in reduced food security as it disrupts ecosystem services essential for food production, such as pollination and nutrient cycling.

Multiple choice

Which of the following is NOT a potential consequence of invasive species introduction?

  1. Competition with native species

  2. Habitat modification

  3. Increased biodiversity

  4. Spread of diseases
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Invasive species introduction typically leads to competition with native species, habitat modification, and the spread of diseases, not an increase in biodiversity.

Multiple choice

Which of the following is NOT a benefit of biodiversity for human well-being?

  1. Enhanced resilience to environmental changes

  2. Increased food security

  3. Improved air and water quality

  4. Reduced risk of natural disasters
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Biodiversity does not directly reduce the risk of natural disasters, but it can contribute to ecosystem resilience, which may help mitigate the impacts of natural disasters.

Multiple choice

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

  1. Habitat loss and fragmentation

  2. Climate change

  3. Pollution

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

Sustainable harvesting is a management practice that aims to ensure that wildlife populations are not depleted through overexploitation.

Multiple choice

What are some of the threats to riverine wetlands?

  1. Pollution

  2. Habitat loss

  3. Climate change

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

Riverine wetlands are threatened by a variety of factors, including pollution, habitat loss, climate change, and invasive species.

Multiple choice

What are some of the threats to riparian zones?

  1. Pollution

  2. Habitat loss

  3. Climate change

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

Riparian zones are threatened by a variety of factors, including pollution, habitat loss, climate change, and invasive species.

Multiple choice

What are some of the consequences of wetland loss?

  1. Loss of biodiversity

  2. Increased flooding

  3. Water pollution

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

Wetland loss has a number of negative consequences, including the loss of biodiversity, increased flooding, and water pollution. Wetlands are home to a wide variety of plants and animals, and their loss can lead to the extinction of these species. Wetlands also help to control flooding by absorbing excess water. When wetlands are lost, this water can flow into rivers and streams, causing flooding. Wetlands also help to filter pollutants from water, so their loss can lead to water pollution.

Multiple choice

Which of the following is not a potential impact of noise pollution from dams and irrigation projects on wildlife?

  1. Habitat disturbance

  2. Behavioral changes

  3. Increased stress levels

  4. Improved reproductive success
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Noise pollution from dams and irrigation projects can negatively impact wildlife through habitat disturbance, behavioral changes, and increased stress levels, but it is unlikely to improve reproductive success.

Multiple choice

What is the main environmental impact of dams?

  1. They can disrupt the natural flow of water

  2. They can lead to the loss of habitat for aquatic species

  3. They can increase the risk of flooding downstream

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

Dams can have a number of negative environmental impacts, including disrupting the natural flow of water, leading to the loss of habitat for aquatic species, and increasing the risk of flooding downstream.

Multiple choice

How does deforestation contribute to the loss of biodiversity?

  1. It reduces the habitat available for wildlife.

  2. It disrupts ecological interactions and food webs.

  3. It leads to the extinction of plant and animal species.

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

Deforestation has multiple negative impacts on biodiversity, including habitat loss, disruption of ecological interactions, and increased risk of species extinction.

Multiple choice

What is the primary threat to the survival of coral reefs worldwide?

  1. Overfishing

  2. Pollution

  3. Climate Change

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

Climate change, particularly rising sea temperatures and ocean acidification, poses a significant threat to coral reefs worldwide, causing coral bleaching and disrupting the delicate balance of these ecosystems.

Multiple choice

What is the process by which coral reefs are damaged and lose their vibrant colors due to stress factors?

  1. Coral Bleaching

  2. Coral Spawning

  3. Coral Fragmentation

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

Coral bleaching occurs when corals expel the symbiotic algae that provide them with nutrients and color, causing them to turn white. This process is often triggered by stress factors such as elevated sea temperatures, pollution, or disease.

Multiple choice

Which of the following is NOT a major threat to national parks and wildlife sanctuaries in India?

  1. Poaching

  2. Habitat loss

  3. Climate change

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

Tourism, while it can have negative impacts on national parks and wildlife sanctuaries, is not generally considered to be a major threat to these areas.

Multiple choice

Which of the following is a major cause of habitat loss in national parks and wildlife sanctuaries?

  1. Deforestation

  2. Mining

  3. Agriculture

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

Deforestation, mining, and agriculture are all major causes of habitat loss in national parks and wildlife sanctuaries.