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 major cause of species overexploitation?

  1. Habitat destruction

  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 strategy aimed at preventing overexploitation, rather than a cause of it.

Multiple choice

What is the term used to describe the loss of species from an ecosystem?

  1. Extinction

  2. Endangerment

  3. Overexploitation

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

Extinction refers to the complete disappearance of a species from the Earth.

Multiple choice

Which of the following is NOT a consequence of species overexploitation?

  1. Loss of biodiversity

  2. Disruption of ecosystem services

  3. Increased resilience to environmental changes

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

Overexploitation typically reduces biodiversity and ecosystem resilience, rather than increasing it.

Multiple choice

Which of the following is NOT a type of species overexploitation?

  1. Hunting

  2. Fishing

  3. Logging

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

Mining is not typically considered a form of species overexploitation, as it does not directly target living organisms.

Multiple choice

What is the term for the loss of species due to habitat destruction?

  1. Habitat fragmentation

  2. Extinction

  3. Endangerment

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

Defaunation refers specifically to the loss of animal species due to habitat destruction.

Multiple choice

What are the main environmental impacts of agricultural expansion?

  1. Loss of biodiversity

  2. Climate change

  3. Water pollution

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

Agricultural expansion can lead to loss of biodiversity, climate change, and water pollution.

Multiple choice

Which of the following is not a factor that can affect species diversity?

  1. Habitat loss

  2. Climate change

  3. Pollution

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

Competition is not a factor that can affect species diversity, but rather a factor that can affect the relative abundance of species within a community.

Multiple choice

Which of the following is not a negative impact of deforestation on biodiversity?

  1. Loss of habitat for plant and animal species

  2. Extinction of species

  3. Disruption of food chains and ecosystems

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

Deforestation typically leads to a decrease in biodiversity due to habitat loss, extinction of species, and disruption of food chains and ecosystems. Increased biodiversity is not a negative impact of deforestation.

Multiple choice

Which of the following is NOT a negative impact of unsustainable tourism on biodiversity?

  1. Habitat destruction and fragmentation

  2. Pollution of air, water, and soil

  3. Increased awareness and appreciation for biodiversity

  4. Introduction of invasive species
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Increased awareness and appreciation for biodiversity is a positive outcome of tourism, rather than a negative impact.

Multiple choice

What are some of the challenges that the Columbian Exchange created?

  1. The spread of disease.

  2. The extinction of species.

  3. The disruption of ecosystems.

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

The Columbian Exchange created a number of challenges, including the spread of disease, the extinction of species, and the disruption of ecosystems.

Multiple choice

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

  1. Habitat fragmentation

  2. Biodiversity conservation

  3. Species extinction

  4. Anthropogenic biodiversity loss
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Anthropogenic biodiversity loss refers to the reduction or loss of biodiversity caused by human activities, such as habitat destruction, pollution, climate change, and overexploitation of resources.

Multiple choice

Which of the following is a major threat to forest biodiversity?

  1. Climate change

  2. Pollution

  3. Invasive species

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

Climate change, pollution, and invasive species are all significant threats to forest biodiversity, as they can disrupt ecosystems, alter species distributions, and lead to species loss.

Multiple choice

Which of the following is NOT a common pathway for the introduction of invasive species?

  1. International trade and travel

  2. Natural dispersal and migration

  3. Climate change and habitat alteration

  4. Deliberate release or escape from captivity
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

While natural dispersal and migration can contribute to the spread of some species, the introduction of invasive species is primarily driven by human activities.

Multiple choice

What are the primary ecological impacts of invasive species?

  1. Increased biodiversity and ecosystem resilience

  2. Competition with native species for resources

  3. Enhancement of ecosystem services and productivity

  4. Promotion of genetic diversity and adaptation
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Invasive species often compete with native species for resources such as food, water, and habitat, leading to population declines and ecosystem disruption.

Multiple choice

What is the term used to describe the negative impacts of invasive species on human health?

  1. Invasive species-related health risks

  2. Ecological disruption

  3. Economic losses

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

Invasive species can pose health risks to humans through various mechanisms, such as transmitting diseases, causing allergies, or producing toxic substances.