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 challenge faced by wildlife conservation efforts in Indian wildlife sanctuaries and national parks?

  1. Habitat loss and fragmentation

  2. Poaching

  3. Climate change

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

Overpopulation is not a key challenge faced by wildlife conservation efforts in Indian wildlife sanctuaries and national parks.

Multiple choice

What is the tragedy of the commons?

  1. The overexploitation of a shared resource due to individual incentives

  2. The depletion of natural resources due to population growth

  3. The pollution of the environment due to industrialization

  4. The loss of biodiversity due to habitat destruction
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

What is the primary economic impact of coastal erosion?

  1. Loss of property and infrastructure

  2. Increased tourism revenue

  3. Improved water quality

  4. Enhanced biodiversity
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Coastal erosion can lead to the loss of property and infrastructure, such as homes, businesses, roads, and bridges, which can have significant economic consequences.

Multiple choice

Which of the following is NOT a potential benefit of coastal erosion?

  1. Creation of new wetlands

  2. Improved water quality

  3. Increased biodiversity

  4. Reduced flooding risk
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Coastal erosion typically increases the risk of flooding, as it removes natural barriers that protect coastal areas from storm surges and flooding.

Multiple choice

What is the effect of an increase in the environmental cost of extraction on the optimal depletion path of an exhaustible resource?

  1. It increases the optimal rate of extraction.

  2. It decreases the optimal rate of extraction.

  3. It has no effect on the optimal rate of extraction.

  4. It makes the optimal rate of extraction indeterminate.
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

An increase in the environmental cost of extraction will increase the cost of extracting the resource, which will lead to a lower optimal rate of extraction.

Multiple choice

What is the primary impact of climate change on forest biodiversity?

  1. Increased genetic diversity

  2. Enhanced species resilience

  3. Reduced habitat fragmentation

  4. Loss of biodiversity
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Climate change can lead to the loss of biodiversity in forests due to habitat loss, altered environmental conditions, and increased vulnerability to pests and diseases.

Multiple choice

Which of the following is a major threat to marine birds due to climate change?

  1. Habitat Loss

  2. Increased Food Availability

  3. Stable Breeding Patterns

  4. Enhanced Migration Routes
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Climate change is leading to habitat loss for marine birds as rising sea levels inundate coastal areas and alter ecosystems.

Multiple choice

What is the primary cause of habitat loss for marine birds due to climate change?

  1. Deforestation

  2. Urbanization

  3. Rising Sea Levels

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

Rising sea levels, a consequence of climate change, inundate coastal habitats and nesting sites, leading to habitat loss for marine birds.

Multiple choice

What are the main threats to tigers in India?

  1. Habitat loss

  2. Poaching

  3. Human-wildlife conflict

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

The main threats to tigers in India include habitat loss, poaching, human-wildlife conflict, and climate change.

Multiple choice

What is the primary driver of migration in animals?

  1. Food availability

  2. Climate change

  3. Mating opportunities

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

Migration in animals is influenced by a combination of factors, including food availability, climate change, and mating opportunities.

Multiple choice

What is the main threat to the survival of the languages of the Middle Andaman Island?

  1. Deforestation

  2. Climate change

  3. Disease

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

The main threat to the survival of the languages of the Middle Andaman Island is assimilation, as the indigenous peoples of the island are increasingly adopting the Hindi language.

Multiple choice

Which of the following is NOT a major threat to coral reefs?

  1. Climate Change

  2. Overfishing

  3. Pollution

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

While natural disasters can impact coral reefs, they are not considered a major threat compared to human-induced factors like climate change, overfishing, and pollution.

Multiple choice

What is the main cause of the current mass extinction event?

  1. Climate change

  2. Habitat loss

  3. Pollution

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

Habitat loss is the leading cause of extinction, as it destroys the homes and resources that species need to survive.

Multiple choice

Which group of organisms is most vulnerable to extinction?

  1. Mammals

  2. Birds

  3. Reptiles

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

Amphibians are the most vulnerable group of organisms to extinction, due to their sensitivity to changes in their environment.

Multiple choice

What is the term for the idea that the current mass extinction event is a combination of natural and human-caused factors?

  1. The Anthropocene

  2. The Sixth Extinction

  3. The Great Dying

  4. The Combined Extinction Hypothesis
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The Combined Extinction Hypothesis is the idea that the current mass extinction event is a combination of natural and human-caused factors.