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 commercial studies forest : our life conservation of forest and wildlife wildlife forest - the dwelling place of animals deforestation and conservation

Forest conservation is the practice of 

  1. Inheritance of characters from parents

  2. Protection of forest areas

  3. Preservation of food

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

Forest conservation is the practice of planning and conserving forest areas for the benefit of future generations. Afforestation is the establishment of a forest in an area either naturally or artificially where there was no forest previously. It is done to keep the natural resources intact for the maintenance of ecosystem and benefit of human. Different techniques done for forest conservation are afforestation, reforestation, controlled burn, etc. 

Thus, the correct answer is option B.

Multiple choice commercial studies striving for a better environment soil and its conservations soil pollution-control protecting our environment

For better survival of human population, which is the most important step?

  1. Afforestation

  2. Reduction in population density

  3. Conservation of wild life including tribals

  4. Both A and B
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Afforestation refers to the conversion of wasteland into a woodland or forest. It is essentially the transformation of land which has not been forested for a period of more than 40 year to woodland through seeding and planting. Afforestation is the best technique used to minimize the greenhouse effect. Planting of trees in semi-arid areas attracts rainfall. This way, agricultural practices such as irrigation are carried out efficiently. In addition, afforestation acts as a catchment for water and soil conservation. With an increase in demand for forest and timber products, afforestation is very valuable due to the explosion of livestock and human population. Disadvantages of high human population density are global warming, pollution, rapid use of natural resources, more exploitation of other living forms and non living systems like rivers, faster destruction of natural systems, deforestation, habitat destruction, pollution, extinctions etc. Hence population density should be reduced. 

Therefore, the correct answer is option D.

Multiple choice zoology biodiversity, classification and conservation levels of biodiversity environmental conservation and biodiversity biodiversity on earth and in india

All of these are reasons why biodiversity is important except

  1. It allows for adjustment to disturbances .

  2. It cleans water.

  3. It provides food and materials.

  4. It has led to medical discoveries.

  5. It increases extinction rates.
Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation
A. Biodiversity allows for adjustments to various disturbances. For example, trees control the rainfall.
B. As the polluted water flows through the dense areas having plants, it gets cleaned naturally.
C. Biodiversity provides food both for animals and mankind.
D. Biodiversity has to medical discoveries as various medicinal plants have been discovered.
E. Biodiversity reduces the extinction rates.
Hence statement E is incorrect.
So, the correct answer is 'It increases extinction rates'.
Multiple choice evs - i the environment and us damaging the forests deforestation and afforestation protecting our environment pollution of soil degradation of land

Forest reserves can be protected through all measures except

  1. Laws inhibiting tree felling

  2. Laws allowing tree felling

  3. Prohibition of hunting

  4. Human population control
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Laws allowing tree felling would encourage deforestation rather than protecting forest reserves. The other options are legitimate conservation measures.

Multiple choice evs let's plant trees damaging the forests deforestation and afforestation protecting our environment pollution of soil degradation of land

What is the importance of forest as a resource?

  1. It improves water holding capacity of soil.

  2. It provides habitat, food, protection to wild life.
  3. It help in balancing $CO _{2}$ and $O _{2}$ of atmosphere.

  4. All of the above.
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation
Forests and biodiversity is key to all life forms. The richer the diversity of life, the greater the opportunity for medical discoveries, economic development and adaptive responses to such new challenges as climate change.
Forests are renewable resources which provide
(a) Habitat, food, protection to wildlife.
(b) Help in balancing CO$ _2$ and O$ _2$ of atmosphere.
(c) Improves water holding capacity of soil.
(d) Regulates water cycle.
(e) For human being, they are the source for all essential commodities like, fuel wood, timber pulp and paper etc.
(f) It provides useful products like fruits, resins, gums, essential oils, bidi wrapper etc. 
Therefore, the correct answer is option D.
Multiple choice evs - i the environment and us damaging the forests deforestation and afforestation protecting our environment pollution of soil degradation of land

An ecologist wants to study the impact of habitat fragmentation on a forest ecosystem. Which of these would be the least impactful way to study the potential effect of habitat fragmentation while giving the most useful information? 

  1. Using a computer model to generate possible outcomes

  2. Observing a fragmented prairie ecosystem

  3. Deforesting an ecosystem and observing the effects

  4. Hypothesizing about what might be possible outcomes of fragmentation

  5. Experirmenting on a small patch of trees in a controlled area
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
Effects of habitat fragmentation on forest ecosystem can be best studied in small and isolated populations. Prairie is a kind of dog. Prairie ecosystem is highly fragmented and effects of habitat fragmentation can't be studies easily in such fragmented ecosystems.
So, the correct answer is 'Observing a fragmented prairie ecosystem'.
Multiple choice evs - i the environment and us damaging the forests deforestation and afforestation protecting our environment

A successful forest conservation strategy should involve

  1. protection of animals at the highest trophic level

  2. protection of only sonsumers

  3. protection of only herbivores

  4. comprehensive programme to protect all the physical and biological components
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

A successful conservation strategy must be holistic, protecting the entire ecosystem including all physical components (soil, water, climate) and biological components (flora and fauna) to maintain ecological balance.

Multiple choice evs - i issues of the environment eco-system and its destruction ecology and ecosystem ecology and ecosysytem

What is role of an acosystem?

  1. providing nutritional support to plants

  2. to generate life continuity, flourishing distinctive structure to all species

  3. helping animals to survive in an environment

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

An ecosystem functions to maintain life by cycling materials and providing structure, which ensures the continuity of various species. The other options are too narrow or incomplete.

Multiple choice evs - i dwelling places of animals threatened species need of conservation conservation of soil and wild life

In a national park, protection is provided to

  1. Entire ecosystem

  2. Flora and fauna

  3. Fauna only

  4. Flora only
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

A park in use for conservation purposes is known as a National park. It is basically a reserve of natural, semi-natural, or developed land that a sovereign state declares or owns. Flora and fauna are provided immense protection in such areas. Currently, in India, we have 166 national parks. 

So, the correct answer is 'Flora and fauna'.

Multiple choice evs - i dwelling places of animals threatened species need of conservation conservation of soil and wild life

Animals and plants are best protected in 

  1. Botanical gardens

  2. Zoos

  3. National parks

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

A park in use for conservation purposes is known as a National park. It is basically a reserve of natural, semi-natural, or developed land that a sovereign state declares or owns. Flora and fauna are provided immense protection in such areas. Currently, in India, we have 166 national parks. 

So, the correct answer is 'National parks'.

Multiple choice evs - i dwelling places of animals threatened species need of conservation conservation of soil and wild life

Which of the following can be related to zoo and wildlife sanctuary?

  1. Zoo - animals are kept for public exhibition, Wildlife sanctuary - area within which animals are protected from possible dangers such as hunting.

  2. Zoo - area within which animals are protected from possible dangers such as hunting, Wildlife sanctuary - animals are kept for public exhibition.

  3. Zoo - artificial habitat, Wildlife sanctuary - conserves the natural habitat of animals.

  4. Both A and C
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation
Zoo is the ex-situ conservation strategy in which animals are conserved in an artificial habitat and are kept for public exhibition.
Wildlife sanctuary is an area within which animals are protected from possible dangers such as hunting in their natural habitat. Hence, it protects the animals as well as conserves the natural habitats of the animals.
Thus, the correct answer is option D.
Multiple choice evs - i dwelling places of animals threatened species need of conservation conservation of soil and wild life

Which of the following is not done in a wildlife sanctuary?

  1. Fauna is conserved

  2. Flora is conserved

  3. Soil and flora are utilized

  4. Hunting is prohibited
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation
  • A wildlife sanctuary is a naturally occurring sanctuary, such as an island, that provides protection for wildlife species from hunting, predation, competition or poaching. 
  • A wildlife sanctuary is a place of refuge where abused, injured and abandoned captive wildlife may live in peace and dignity for the remainder of their lives. True wildlife sanctuaries do not breed or exploit for commercial activities. Fauna (animals) and flora (plants) are conserved.
  • So, the correct answer is 'Soil and flora are utilized'.
Multiple choice evs - i dwelling places of animals threatened species need of conservation conservation of soil and wild life

Which of the following is not done in a wild life sanctuary?

  1. Fauna is conserved.

  2. Flora is conserved.

  3. Soil and flora are utilized.

  4. Hunting is prohibited.
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

A wild life sanctuary is a facility where animals are brought to live and be protected for the rest of their lives.

Wild life sanctuaries are the place to protect species from hunting, predation etc., in their natural environment. Wild animals cannot survive if flora is destructed. Hence, the correct answer is option C.

Multiple choice evs - i dwelling places of animals threatened species need of conservation conservation of soil and wild life

Which of the following is not done in a wildlife sanctuary?

  1. Conservation of fauna

  2. Conservation of flora

  3. Prohibition of hunting

  4. Exploitation of soil and flora
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

A naturally occurring sanctuary, such as an island, which protects species from getting hunted, predated or poached is called as a wildlife refuge. It is also known as a wildlife sanctuary. Being a protected area, it is a geographic territory within which wildlife is protected. 515 wildlife sanctuaries are present in India currently. Conservation of flora and fauna along with the prohibition of hunting is done here.

So, the correct answer is 'Exploitation of soil and flora'.