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

What are some threats to genetic diversity?

  1. Habitat loss and fragmentation

  2. Climate change

  3. Pollution

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

Genetic diversity can be threatened by habitat loss and fragmentation, climate change, pollution, and inbreeding.

Multiple choice

What are some examples of the negative impacts of reduced genetic diversity on ecosystem health?

  1. Increased susceptibility to disease outbreaks

  2. Reduced ability to adapt to climate change

  3. Loss of biodiversity

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

Reduced genetic diversity can have several negative impacts on ecosystem health, including increased susceptibility to disease outbreaks, reduced ability to adapt to climate change, and loss of biodiversity.

Multiple choice

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

  1. Habitat Fragmentation

  2. Species Extinction

  3. Ecosystem Collapse

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

Deforestation can lead to habitat fragmentation, species extinction, and ecosystem collapse, collectively contributing to biodiversity loss.

Multiple choice

Which of the following is a major threat to the coastal and marine ecosystems of India?

  1. Pollution

  2. Overfishing

  3. Habitat destruction

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

All of the options are major threats to the coastal and marine ecosystems of India. Pollution, overfishing, habitat destruction, and climate change are all contributing to the degradation of these ecosystems.

Multiple choice

Which of the following is a major threat to the marine biodiversity of India?

  1. Bycatch

  2. Overfishing

  3. Habitat destruction

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

All of the options are major threats to the marine biodiversity of India. Bycatch, overfishing, habitat destruction, and pollution are all contributing to the decline of marine species and ecosystems.

Multiple choice

Which of the following is a major threat to the dugongs in India?

  1. Bycatch

  2. Habitat destruction

  3. Pollution

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

All of the options are major threats to the dugongs in India. Bycatch, habitat destruction, pollution, and climate change are all contributing to the decline of dugong populations.

Multiple choice

Habitat fragmentation primarily results from:

  1. Natural disasters

  2. Urban development

  3. Climate change

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

Habitat fragmentation is often caused by human activities such as urban development, which leads to the division of natural habitats into smaller and isolated patches.

Multiple choice

Which of the following is NOT a consequence of habitat fragmentation?

  1. Loss of biodiversity

  2. Increased genetic diversity

  3. Reduced ecosystem services

  4. Disruption of ecological processes
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Habitat fragmentation typically leads to a decrease in genetic diversity due to the isolation of populations and reduced gene flow.

Multiple choice

Habitat fragmentation and soil erosion are interconnected because:

  1. They both contribute to climate change

  2. They both occur naturally

  3. They both affect biodiversity

  4. They both result from human activities
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Habitat fragmentation and soil erosion can both negatively impact biodiversity by reducing the availability of suitable habitats and increasing the vulnerability of species to environmental changes.

Multiple choice

Which of the following is NOT a benefit of reducing habitat fragmentation?

  1. Increased biodiversity

  2. Enhanced ecosystem services

  3. Reduced carbon sequestration

  4. Improved water quality
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Reducing habitat fragmentation can lead to increased carbon sequestration, as intact habitats support more vegetation that can absorb carbon dioxide from the atmosphere.

Multiple choice

The concept of 'landscape connectivity' is important in the context of:

  1. Habitat fragmentation

  2. Soil erosion

  3. Climate change

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

Landscape connectivity is crucial in the context of habitat fragmentation, as it refers to the degree to which different parts of a landscape are connected, allowing for the movement of species and the exchange of genetic material.

Multiple choice

Which of the following is NOT a potential consequence of habitat fragmentation?

  1. Increased risk of species extinction

  2. Reduced genetic diversity

  3. Enhanced ecosystem resilience

  4. Disruption of ecological processes
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Habitat fragmentation typically leads to a decrease in ecosystem resilience, as it reduces the ability of ecosystems to adapt to environmental changes and recover from disturbances.

Multiple choice

What is the primary ethical concern associated with the depletion of natural resources?

  1. Animal suffering

  2. Loss of biodiversity

  3. Climate change

  4. Human health risks
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The depletion of natural resources, such as forests and fossil fuels, poses a significant ethical concern due to its impact on biodiversity, which is crucial for maintaining ecological balance and ecosystem functioning.

Multiple choice

Which of the following is NOT a factor that can contribute to the loss of genetic diversity in a population?

  1. Habitat loss and fragmentation.

  2. Overexploitation.

  3. Pollution.

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

Habitat loss and fragmentation, overexploitation, and pollution are all factors that can contribute to the loss of genetic diversity in a population. Natural selection, while it can lead to the loss of certain alleles from a population, is not typically considered a major factor in the loss of genetic diversity.

Multiple choice

Which of the following is NOT a consequence of the loss of genetic diversity in an ecosystem?

  1. Reduced stability and resilience.

  2. Reduced productivity.

  3. Increased resistance to disease.

  4. Increased risk of extinction.
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The loss of genetic diversity in an ecosystem can have a number of negative consequences, including reduced stability and resilience, reduced productivity, and increased risk of extinction. However, it does not typically lead to an increased resistance to disease.