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

What is the future of wetlands?

  1. Wetlands are facing a number of threats, including pollution, climate change, and deforestation

  2. Wetlands are resilient ecosystems that can adapt to change

  3. Wetlands are important ecosystems that provide a number of benefits to humans and wildlife

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

Wetlands are facing a number of threats, but they are also resilient ecosystems that can adapt to change. Wetlands are important ecosystems that provide a number of benefits to humans and wildlife.

Multiple choice

The term 'biodiversity hotspot' refers to:

  1. A region with a high concentration of biodiversity

  2. A region with a high rate of deforestation

  3. A region with a high level of pollution

  4. A region with a high number of endangered species

  5. A region with a high rate of urbanization
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

A biodiversity hotspot is a region with a high concentration of biodiversity, including a large number of endemic species, which are species that are found only in that region.

Multiple choice

What is the term for a sudden and widespread extinction event?

  1. Mass extinction

  2. Background extinction

  3. Endemic extinction

  4. None of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

A mass extinction is a sudden and widespread extinction event that affects a large number of species in a short period of time.

Multiple choice

What are some of the causes of mass extinctions?

  1. Asteroid impacts

  2. Volcanic eruptions

  3. Climate change

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

Mass extinctions can be caused by a variety of factors, including asteroid impacts, volcanic eruptions, and climate change.

Multiple choice

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

  1. Habitat destruction

  2. Climate change

  3. Pollution

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

Sustainable agriculture practices aim to minimize the negative impact on the environment and promote the conservation of biodiversity.

Multiple choice

Which species was brought back from the brink of extinction through the efforts of conservationists and the establishment of national parks?

  1. African Elephant

  2. Giant Panda

  3. Bald Eagle

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

The Bald Eagle population in the United States declined drastically due to habitat loss and the use of pesticides. Conservation efforts, including the banning of DDT and the establishment of national parks, helped the species recover.

Multiple choice

Which species was successfully reintroduced to the wild after being extinct in the wild for over 100 years?

  1. California Condor

  2. Black-footed Ferret

  3. Golden Lion Tamarin

  4. Scimitar-horned Oryx
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The California Condor was successfully reintroduced to the wild in the 1990s after being extinct in the wild for over 100 years due to habitat loss and hunting.

Multiple choice

Which species was successfully reintroduced to the wild after being extinct in the wild for over 400 years?

  1. Passenger Pigeon

  2. Dodo

  3. Thylacine

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

The Passenger Pigeon was successfully reintroduced to the wild in the early 20th century after being extinct in the wild for over 400 years due to overhunting.

Multiple choice

Which species was successfully reintroduced to the wild after being extinct in the wild for over 200 years?

  1. Golden Lion Tamarin

  2. Black-footed Ferret

  3. Scimitar-horned Oryx

  4. Przewalski's Horse
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The Golden Lion Tamarin was successfully reintroduced to the wild in the 1990s after being extinct in the wild for over 200 years due to habitat loss and hunting.

Multiple choice

Which species was successfully reintroduced to the wild after being extinct in the wild for over 100 years?

  1. Black-footed Ferret

  2. Scimitar-horned Oryx

  3. Przewalski's Horse

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

The Black-footed Ferret was successfully reintroduced to the wild in the 1990s after being extinct in the wild for over 100 years due to habitat loss and disease.

Multiple choice

Which species was successfully reintroduced to the wild after being extinct in the wild for over 50 years?

  1. Scimitar-horned Oryx

  2. Przewalski's Horse

  3. Baiji

  4. Golden Lion Tamarin
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The Scimitar-horned Oryx was successfully reintroduced to the wild in the 1990s after being extinct in the wild for over 50 years due to habitat loss and hunting.

Multiple choice

Which of the following is NOT a potential consequence of ocean acidification?

  1. Coral bleaching

  2. Reduced fish populations

  3. Increased biodiversity

  4. Damage to marine ecosystems
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Ocean acidification is not expected to lead to increased biodiversity.

Multiple choice

Which of the following is NOT a known cause of mass extinction events?

  1. Asteroid impacts

  2. Volcanic eruptions

  3. Climate change

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

Disease outbreaks are not considered to be a major cause of mass extinction events, as they typically affect only a small number of species.

Multiple choice

Which of the following is NOT a consequence of mass extinction events?

  1. Loss of biodiversity

  2. Ecological disruption

  3. Evolutionary opportunities

  4. Increased competition for resources
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Mass extinction events can lead to evolutionary opportunities for surviving species, as they may be able to fill the ecological niches left vacant by extinct species.

Multiple choice

The term "background extinction rate" refers to the:

  1. Average rate of extinction over long periods of time

  2. Rate of extinction during mass extinction events

  3. Rate of extinction caused by human activities

  4. Rate of extinction caused by natural disasters
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The background extinction rate is the average rate of extinction over long periods of time, typically measured in species per million years.