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 human activity will most likely have a negative effect on global stability?

  1. decreasing water pollution levels

  2. increasing recycling programs

  3. decreasing habitat destruction

  4. increasing world population growth
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Rapid population growth places immense pressure on the environment, leading to resource depletion, increased waste, and habitat destruction. This creates instability across global ecosystems.

Multiple choice

Which long-term change could directly cause the other three?

  1. pollution of air and water

  2. increasing human population

  3. scarcity of suitable animal habitats

  4. depletion of resources
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Increasing human population is the root cause that leads to higher pollution, habitat destruction, and resource depletion. The other options are consequences of this primary driver.

Multiple choice

Which action would be least likely to harm endangered species?

  1. releasing more carbon dioxide into the atmosphere

  2. reducing the human population

  3. decreasing the amount of dissolved oxygen in the oceans

  4. reducing the thickness of the ozone layer
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Reducing the human population decreases the demand for land and resources, which alleviates pressure on ecosystems and endangered species. The other options are harmful activities.

Multiple choice

Which human activity would most likely depletefinite resources?

  1. use of natural enemies to eliminate insect pests

  2. development of wildlife refuges

  3. governmental restriction of industrial pollution

  4. uncontrolled population growth
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Uncontrolled population growth leads to an unsustainable demand for finite resources like fossil fuels and minerals. This rapid consumption depletes these resources faster than they can be managed.

Multiple choice

Which of these is not a likely reason why Easter Island declined?

  1. Wars between rival clans

  2. Overpopulation

  3. Deforestation

  4. Disease introduced by Europeans
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The decline of Easter Island is attributed to environmental factors like deforestation and social collapse, but disease introduced by Europeans occurred long after the initial decline of the society.

Multiple choice

What makes life in coastal wetlands harsh for the organisms that inhabit them?

  1. there tend to be more predators in these areas

  2. Must be able to withstand constant changes

  3. the areas are too large too inhabit

  4. there;s too much competition amongst organisms
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Coastal wetlands are subject to tidal changes, varying salinity levels, and fluctuating water levels, requiring organisms to be highly adaptable to survive.

Multiple choice

Humans are disrupting which of the following ecosystems?

  1. shorelines

  2. mangrove forests

  3. coral reefs

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

Human activity has negatively impacted a wide range of ecosystems, including shorelines, mangrove forests, and coral reefs, through development, pollution, and climate change.

Multiple choice social studies natural vegetation and communities dependent on forest land degradation wildlife resources human activities and environmental degradation

Financial and technical assistance is provided to many botanical gardens by the government since _________.

  1. 2000

  2. 1992

  3. 2005

  4. 1990

  5. None of these
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
At many places forests are being replaced or degraded. The main causes for this threat to nature are hunting and poaching by man for commercial purposes. Pollution due to chemical and industrial waste,acid deposits , introduction of alien species and reckless cutting of the forests to bring land under cultivation and habitation are also responsible for imbalance.

To protect the flora and fauna of the country the government has taken many steps:

1. 18 Biosphere Reserves have been set up in the country and 3out of them are the Sunderbans in the West Bengal, the gulf of Mannar in Tamilnadu and the Nilgiris (Kerala ,Karnataka and tamilnadu) are included in the world network of Biosphere Reserves.

2. Since 1992 the government has provided financial and Technical assistance too many botanical gardens.

3. Project Tiger, project rhino, project Great Indian Bustard and many other Eco developmental projects have been introduced.

4. Many facilities like generating awareness among the people and to educate their our flora and fauna are provided.

5. 103 national parks, 530 Wildlife sanctuaries and zoological gardens (Government of India, July 2015) are setup to take care of natural heritage.
Multiple choice social studies natural vegetation and communities dependent on forest land degradation wildlife resources human activities and environmental degradation

The destruction of forests and wildlife leads to ________.

  1. Loss of livelihood of the local communities

  2. Depletion of culture

  3. Depletion of biological stock

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

The destruction of forests and wildlife leads to deforestation. Deforestation is the process of cutting down forests in order to satisfy human needs like laying roads, for the purpose of wood for furniture etc.

It has a number of negative effects like loss of livelihood of the local communities as the forests serve as the livelihood for the people living in the area. Depletion of culture because traditional wildlife would get exhausted leading to the people moving away from the areas to urban areas. Depletion of biological stock is the other effect caused due to deforestation.

Multiple choice zoology biodiversity, classification and conservation biodiversity losses biodiversity loss and need for conservation environmental conservation and biodiversity

The impact of loss of biodiversity include

  1. decline in plant production

  2. lowered resistance to environmental perturbations

  3. increased variability in ecosystem processes like plant productivity, water use, pest and disease cycles

  4. all of these.
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Loss of biodiversity includes decline in plant production, lowered resistance to environmental perturbations and increased variability in processes of ecosystem.

So, the correct option is 'all of these.'.