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 is the primary cause of habitat loss for many endangered species?

  1. Deforestation

  2. Pollution

  3. Climate Change

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

Deforestation, the clearing of forests for various purposes such as agriculture, logging, and development, is a major contributor to habitat loss and fragmentation, leading to the decline of many endangered species.

Multiple choice

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

  1. Deforestation

  2. Pollution

  3. Climate change

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

Habitat destruction is the primary cause of biodiversity loss due to human activities. Deforestation, pollution, and climate change are all factors that contribute to habitat destruction.

Multiple choice

Which of the following is NOT a challenge faced by conservation efforts?

  1. Habitat loss and fragmentation

  2. Pollution

  3. Climate change

  4. Lack of public awareness and support
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Lack of public awareness and support is not a challenge faced by conservation efforts. In fact, public awareness and support are essential for the success of conservation efforts.

Multiple choice

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

  1. Climate change

  2. Overfishing

  3. Pollution

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

Deforestation is not a threat to coral reefs. Climate change, overfishing, and pollution are all threats to coral reefs.

Multiple choice

Which of the following is a threat to the aesthetic value of biodiversity?

  1. Habitat destruction

  2. Pollution

  3. Climate change

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

Habitat destruction, pollution, and climate change are all threats to the aesthetic value of biodiversity.

Multiple choice

What are some challenges to protecting the aesthetic value of biodiversity?

  1. Habitat destruction

  2. Pollution

  3. Climate change

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

Habitat destruction, pollution, and climate change are all challenges to protecting the aesthetic value of biodiversity.

Multiple choice

What is the main cause of endangerment for most species in India?

  1. Habitat loss

  2. Hunting

  3. Pollution

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

Habitat loss is the main cause of endangerment for most species in India. This is due to deforestation, urbanization, and other human activities that destroy or fragment natural habitats.

Multiple choice

What are some of the challenges facing conservation efforts in India?

  1. Habitat loss

  2. Poaching

  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 conservation efforts in India.

Multiple choice

Which of these factors 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 cause localized damage to coral reefs, they are not a primary driver of long-term reef degradation. Climate change, overfishing, and pollution pose significant threats to the health and survival of coral reefs worldwide.

Multiple choice

Which of these factors is not a contributing factor to coral bleaching?

  1. Elevated sea temperatures

  2. Pollution

  3. Overfishing

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

Natural aging is not a contributing factor to coral bleaching. Coral bleaching occurs when corals expel the symbiotic algae that provide them with nutrients and color, resulting in a loss of pigmentation and increased susceptibility to stress and disease.

Multiple choice

What is the term used to describe the loss of biodiversity in agricultural ecosystems?

  1. Agrobiodiversity Loss

  2. Habitat Fragmentation

  3. Ecosystem Simplification

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

Agrobiodiversity loss refers to the decline in the variety of plant and animal species in agricultural ecosystems, often due to the intensification of farming practices.

Multiple choice

What is the primary cause of overfishing in marine ecosystems?

  1. Climate Change

  2. Habitat Destruction

  3. Bycatch

  4. Unsustainable Fishing Practices
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Unsustainable fishing practices, such as overfishing and destructive fishing methods, are the primary cause of the decline in fish populations and marine biodiversity.

Multiple choice

What are some of the consequences of cultural extinction?

  1. Loss of biodiversity

  2. Loss of traditional knowledge and skills

  3. Loss of cultural identity

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

Cultural extinction can lead to the loss of biodiversity, traditional knowledge and skills, cultural identity, and other negative consequences.

Multiple choice

Which of the following is a major threat to the resilience of tundra ecosystems?

  1. Climate change

  2. Pollution

  3. Habitat fragmentation

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

Climate change, particularly the rise in temperatures, is a significant threat to tundra ecosystems. It leads to the thawing of permafrost, disruption of hydrological processes, and changes in vegetation composition, impacting the overall resilience of these fragile environments.

Multiple choice

What is the primary reason for the low biodiversity in tundra ecosystems?

  1. Harsh climatic conditions

  2. Limited resources

  3. Competition from other species

  4. Lack of suitable habitats
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The harsh climatic conditions in tundra environments, characterized by extreme temperatures, short growing seasons, and low precipitation, limit the survival and diversity of many species. These conditions make it challenging for organisms to adapt and thrive, resulting in lower biodiversity compared to other ecosystems.