Environmental Studies · Biology

Biodiversity and Conservation

4,050 Questions

Biodiversity and conservation focus on protecting species, maintaining natural habitats, and managing ecological balance. It covers essential themes like wildlife corridors, marine ecosystems, and genetic diversity. This topic is heavily tested in environmental studies sections across multiple competitive exams.

Ecosystem conservationWildlife sanctuariesEndangered species managementGenetic diversityEnvironmental ethics

Biodiversity and Conservation Questions

Multiple choice
  1. preventing soil erosion

  2. developing a vegetational cover

  3. preventing overgrazing

  4. introducing agriculture

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Developing a vegetational cover is the most comprehensive approach to restoring ecological balance in mined areas. Plants help stabilize soil, prevent erosion, restore nutrient cycles, and create habitat for other organisms. While preventing soil erosion is important, vegetation establishment addresses multiple ecological processes simultaneously and initiates natural succession.

Multiple choice
  1. genetic diversity

  2. species diversity

  3. ecosystem diversity

  4. All of the above

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Modern biodiversity conservation recognizes diversity at all levels: genetic (within species), species (between species), and ecosystem (across habitats). All three levels are interconnected and essential for comprehensive conservation efforts.

Multiple choice
  1. They are the only areas where species are seriously threatened in the world.

  2. The number of species threatened far exceeds our capacity to protect them and we can, therefore, only concentrate on areas of highest species diversity.

  3. Protecting all areas of threatened species would not allow for new species to develop.

  4. They are areas where people do not live and conservation would, therefore, not be affecting the economic development of the area.

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Primary reason for targeting 'biodiversity hotspots' for conservation is the number of species threatened far exceeds our capacity to protect them and we can, therefore, only concentrate on areas of highest species diversity. The biodiversity hotspots hold especially high numbers of endemic species, yet their combined area of remaining habitat covers only 2.3 percent of the Earth's land surface. Each hotspot faces extreme threats and has already lost at least 70 percent of its original natural vegetation. Over 50 percent of the world's plant species and 42 percent of all terrestrial vertebrate species are endemic to the 34 biodiversity hotspots. 

Multiple choice
  1. they are recognised to have one of the highest percentages of endemic plants

  2. they are one of the world’s most productive mangrove forests

  3. they are the dwelling of the highest number of endangered fauna

  4. they serve as the model of unique and successful conservation efforts

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Kwongan is a type of heathland found on the coastal plains of Western Australia. Kwongan comprises floristically-rich heath with dense thickets of sclerophyllous shrubs and isolated small trees. It is characterised by nutrient-poor sandy soils, frequent wildfire, a very high level of endemism, spectacular displays of wildflowers in spring, and a Mediterranean climate with winter rainfall and hot, dry summers.

Multiple choice

Give the best summary of the second paragraph.

Directions: Answer the given question based on the following passage:

The wilderness is returning to Europe, but not without a little human help. Conservationists have spent years guarding eggs, counting stocks and reintroducing young animals into their natural habitat. But European wildlife also depends on a strong political framework, such as the hunting bans, protected sites and resettlement projects introduced by individual nations, which inspired the European Union to pass bold laws. This began with the Birds Directive, passed in 1979 which, in a single stroke, banned the hunting of virtually all European birds. In addition, EU member states were required to designate Special Protection Areas for 160 particularly vulnerable species—a measure that is largely responsible for the increase in populations of the White-tailed eagle, Marsh Harrier and Black stork, as studies carried out by Birdlife International have shown.
Thanks to EU laws, the air became cleaner, lakes and rivers recovered, and the use of chemicals in agriculture and industry declined during the 1970s and 1980s. Since then, stocks of fish have increased and birds of prey have been breeding more successfully. The greatest legislative coup took place in 1992 with the Habitats Directive. This requires member states to set up Special Areas of Conservation for endangered flora and fauna, including animals and such as the beaver, European otter, Eurasian lynx and Grey wolf. If existing reserves met the required criteria, they could be re-designated, but most countries have had to place additional areas under protection.
The Directive has placed 234 vulnerable species of plants and animals under protection, including all big carnivores, as well as bison, Alpine ibex and beaver. It has also compelled governments to relook at industrial parks and highways—as was the case in Poland in 2008, when a proposed new road was relocated so that it did not cut across the protected Rospuda Valley—and prompted them to introduce bans on hunting. Any new EU member is required to implement far more stringent laws on nature conservation: laws that are often fought out in court. One in four cases before the European Court of Justice involving one of its member states involves a breach of EU environmental law.
In some countries this breach is due to a lack of ability. ‘In Eastern Europe, governments at times have too little money or too few resources to meet their EU obligations’, says Professor Christoph Knill, environmental policy researcher at Konstanz University, Germany. In other cases, it is the lack of political will: Germany, for instance, designated its last Special Area of Conservation only in 2008, after a delay of 10 years and after the EU Commission threatened to drag it to court. By now, however, all states have set up their Special Protection Areas and Special Areas of Conservation: 26,000 sanctuaries in all, that together make up the Natura 2000 network and cover 18 per cent of the EU landmass. It is the world’s largest group of biotopes and a showpiece of the EU environmental policy, no matter what the critics say. (The Laws of the Wild West by Torsten Schafer)

 

  1. Restrained use of chemicals in agriculture and industry during the 1970s and 1980s made environment congenial for flora and fauna to flourish.

  2. It was thanks to EU laws that made it possible for exercising restraint in the use of chemicals that led to improvement in breeding of fauna.

  3. The most effective tool was the Habitat Directive of 1992 that contributed to increased production of fish and preying birds.

  4. Even as most of the states were able to provide special protection areas for the endangered flora and fauna, they kept revising the criteria to meet new targets.

  5. Putting areas under protection was not a one-time exercise. This needed to be constantly reviewed with a view to bringing more areas under protective umbrella.

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

This hits the bull's eye. It was precisely a law-enabled exercise that bore fruit. This is the best summary.

Multiple choice

The underlying idea of the passage is

Directions: Answer the given question based on the following passage:

The wilderness is returning to Europe, but not without a little human help. Conservationists have spent years guarding eggs, counting stocks and reintroducing young animals into their natural habitat. But European wildlife also depends on a strong political framework, such as the hunting bans, protected sites and resettlement projects introduced by individual nations, which inspired the European Union to pass bold laws. This began with the Birds Directive, passed in 1979 which, in a single stroke, banned the hunting of virtually all European birds. In addition, EU member states were required to designate Special Protection Areas for 160 particularly vulnerable species—a measure that is largely responsible for the increase in populations of the White-tailed eagle, Marsh Harrier and Black stork, as studies carried out by Birdlife International have shown.
Thanks to EU laws, the air became cleaner, lakes and rivers recovered, and the use of chemicals in agriculture and industry declined during the 1970s and 1980s. Since then, stocks of fish have increased and birds of prey have been breeding more successfully. The greatest legislative coup took place in 1992 with the Habitats Directive. This requires member states to set up Special Areas of Conservation for endangered flora and fauna, including animals and such as the beaver, European otter, Eurasian lynx and Grey wolf. If existing reserves met the required criteria, they could be re-designated, but most countries have had to place additional areas under protection.
The Directive has placed 234 vulnerable species of plants and animals under protection, including all big carnivores, as well as bison, Alpine ibex and beaver. It has also compelled governments to relook at industrial parks and highways—as was the case in Poland in 2008, when a proposed new road was relocated so that it did not cut across the protected Rospuda Valley—and prompted them to introduce bans on hunting. Any new EU member is required to implement far more stringent laws on nature conservation: laws that are often fought out in court. One in four cases before the European Court of Justice involving one of its member states involves a breach of EU environmental law.
In some countries this breach is due to a lack of ability. ‘In Eastern Europe, governments at times have too little money or too few resources to meet their EU obligations’, says Professor Christoph Knill, environmental policy researcher at Konstanz University, Germany. In other cases, it is the lack of political will: Germany, for instance, designated its last Special Area of Conservation only in 2008, after a delay of 10 years and after the EU Commission threatened to drag it to court. By now, however, all states have set up their Special Protection Areas and Special Areas of Conservation: 26,000 sanctuaries in all, that together make up the Natura 2000 network and cover 18 per cent of the EU landmass. It is the world’s largest group of biotopes and a showpiece of the EU environmental policy, no matter what the critics say. (The Laws of the Wild West by Torsten Schafer)

 

  1. to show how helpful were EU laws in bringing about an improvement in flora and fauna in the European countries

  2. to highlight the problems of small countries with little money or resource to meet the formidable cost of implementing EU laws

  3. to show that there is a progressive realization about the importance of maintaining ecology for the better health of the world

  4. to convey to the world that while everything may not be going the right way on ecology front, EU countries have moved forward

  5. to emphasize that it devolves both on conservationists and governments to protect the endangered flora and fauna to conserve life on the earth

Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

The most important thing is to protect the endangered species of flora and fauna so that life on the earth is sustained. This is a challenge that has to be met both by the governments and people.

Multiple choice
  1. 1 - A, 2 - B, 3 - C, 4 - D, 5 - E

  2. 1 - C, 2 - D, 3 - A, 4 - E, 5 - B

  3. 1 - D, 2 - E, 3 - A, 4 - B, 5 - C

  4. 1 - C, 2 - B, 3 - C, 4 - E, 5 - A

  5. 1 - D, 2 - D, 3 - A, 4 - E, 5 - B

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

In Ex-situ conservation, threatened species are actually move on to special preservation from their natural habitat. Gene bank is an institute that keep group of feasible seeds, live developing plants, tissue cultivation and chilled germplasm having maximum genetic variability. Hot spot is a region with high endemism and  rich in level of species. In-situ conservation threatened species are conserved in their natural habitat in order to conserve the entire ecosystem. Offsite collection is the collection of known wild and domestic species from zoological park, safari, wild life and  botanical garden.

Multiple choice
  1. to protect the environment

  2. to protect the habitats of wildlife

  3. to protect the living creatures as well as women living in the wild

  4. None of these

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The Wildlife Protection Act, 1972 is an Act of the Parliament of India enacted for protection of plants and animal species.

Multiple choice
  1. listing all species that can be hunted, traded, and used commercially

  2. listing those species and products whose international trade is controlled

  3. funding projects for breeding endangered plants and animals

  4. preventing the hunting of whales and dolphins

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

CITES (the Convention on International Trade in Endangered Species of Wild Fauna and Flora) is an international agreement between governments. 

Multiple choice
  1. preserve wild land flora and fauna

  2. experiment and develop forest products

  3. tourism

  4. local communities managing the resources

  5. all of the above

Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

Biosphere Reserves are sites for experimenting with and learning about sustainable development. There are three main parts to a reserve. The first part is called the core zone, which is strongly protected for the conservation of biological diversity to make sure that different types of plants and animals are safe from human impact. The second part is called a buffer zone and surrounds the core zones and provide a space for environmental research, recreation, and tourism. The last part is called a transition zone  and this area is for local communities that have  hand in managing the resources of the area through farming, fisheries, and other non-governmental activities. Ultimately, the ways that these three zones operate depend on the specific needs of the biosphere reserve they are in.

Multiple choice
  1. Only a

  2. Only a and b

  3. Only b and c

  4. Only c

  5. All of these

Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

This is the correct option, as all of the above are methods that should be taken for the conservation of forests and wildlife.

Multiple choice
  1. Biosphere Reserve helps in preventing the commercial exploitation of the area.

  2. Biosphere reserve is only for the protection of the wild animals of the area in their natural habitat.

  3. Biosphere Reserve provides opportunities for scientific research, environmental education and tourism.

  4. Biosphere Reserve promotes economic development of the area.

  5. Biosphere Reserve preserves the natural ecological conditions of the area.

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

This is the correct option. The protection of only the wild animals of the area in their natural habitat, is not the role of Biosphere Reserve. It helps to maintain the biodiversity of the area.

Multiple choice
  1. are capable of surviving in harsh environmental conditions

  2. indicate the presence of certain minerals in the soil

  3. have become rare due to over exploitation

  4. play an important role in supporting other species

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

A keystone species is a species whose very presence contributes to a diversity of life and whose extinction would consequently lead to the extinction of other forms of life. Keystone species help to support the ecosystem (entire community of life) of which they are a part. 

Multiple choice
  1. The natural resources are limited.

  2. The proper management of resources takes long-term perspective into consideration.

  3. It can ensure equitable distribution of natural resources.

  4. The proper management of natural resources will take into consideration the damage caused to the environment during the extraction and find ways and means to minimise the damage.

  5. All of the above

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

 
 

Multiple choice
  1. In case of Government authorised felling of forest trees, for every one acre, an equal area of tree saplings should be planted.

  2. The unauthorised felling of forest trees for timber and fuel-wood should be curbed immediately.

  3. The natural habitats of wild animals and birds should be preserved by establishing National Parks and Sanctuaries throughout the country.

  4. Laws should be made to impose a total ban on poaching of any animal belonging to the endangered species.

  5. All of the above

Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation