We have compiled the NCERT MCQ Questions for Class 12 Biology Chapter 15 Biodiversity and Conservation with Answers Pdf free download covering the entire syllabus. Practice MCQ Questions for Class 12 Biology with Answers on a daily basis and score well in exams. Refer to the Biodiversity and Conservation Class 12 MCQs Questions with Answers here along with a detailed explanation.
Biodiversity and Conservation Class 12 MCQs Questions with Answers
Multiple Choice Type Questions
Question 1.
One of the ex situ conservation methods for endangered species is
(a) Wild life sanctuaries
(b) Biosphere reserves
(c) Cryopreservation
(d) National parks
Answer
Answer: (c) Cryopreservation
Question 2.
Which of the following is not done in a wild life sanctuary?
(a) Fauna is conserved
(b) Flora is conserved
(c) Soil and flora is utilised
(d) Hunting is prohibited
Answer
Answer: (c) Soil and flora is utilised
Question 3.
First National park developed in India is
(a) Gir
(b) Kaziranga
(c) Jim Corbett
(d) None of these
Answer
Answer: (c) Jim Corbett
Question 4.
Which one of the following pairs of geographical areas show maximum biodiversity in our country?
(a) Sunderbans and Rann of Kutch
(b) Eastern Ghats and West Bengal
(c) Eastern Himalayas and Western Ghats
(d) Kerala and Punjab
Answer
Answer: (c) Eastern Himalayas and Western Ghats
Question 5.
Genetic biodiversity in agricultural crops in threatened by
(a) introduction of high yielding varieties
(b) intensine use of fertilizers
(c) extensive intercropping
(d) intensive use of biopesticides
Answer
Answer: (a) introduction of high yielding varieties
Question 6.
In your opinion, which is the most effective way to conserve the plant diversity of an area?
(a) By creating Biosphere reserve
(b) By creating Botanical gardens
(c) By developing seed banks
(d) By tissue culture method
Answer
Answer: (a) By creating Biosphere reserve
Question 7.
Which group of vertebrates comprises the highest number of endangered species?
(a) Fishes
(b) Reptiles
(c) Birds
(d) Mammals
Answer
Answer: (d) Mammals
Question 8.
The worst dangerous threat to wild life is by
(a) Habitat destruction
(b) Hunting
(c) Overgrazing
(d) Exotic species
Answer
Answer: (a) Habitat destruction
Question 9.
New approach to conservation is the establishment of
(a) Sanctuaries
(b) Biosphere reserves
(c) National parks
(d) Reserve forests
Answer
Answer: (b) Biosphere reserves
Question 10.
Wild life is destroyed most by
(a) Lack of proper care
(b) Mass scale hunting
(c) Destruction of natural habitats
(d) Natural calamity
Answer
Answer: (c) Destruction of natural habitats
Question 11.
More than 70 percent of all the recorded biotic components are
(a) Animals
(b) Plants
(c) Human beings
(d) None of the above
Answer
Answer: (a) Animals
Question 12.
Plant compromise not more than
(a) 20 percent of the total species
(b) 22 percent of the total species
(c) 32 percent of the total species
(d) 30 percent of the total species
Answer
Answer: (b) 22 percent of the total species
Question 13.
The largest tropical Amazonian rain forest is in
(a) North America
(b) South America
(c) India
(d) Pakistan
Answer
Answer: (b) South America
Question 14.
In situ conservation refers to
(a) On site conservation
(b) Off site conservation
(c) Could be both (a) and (b)
(d) None of the above
Answer
Answer: (a) On site conservation
Question 15.
Endemism refers to
(a) Species confined to that region and not found anywhere else
(b) Species confined to. that Region and also found anywhere else
(c) Species of all varieties
(d) None of the above
Answer
Answer: (a) Species confined to that region and not found anywhere else
Fill in the Blanks
Question 1.
………………. is the diversity of genes within a species.
Answer
Answer: Genetic diversity
Question 2.
Wild life includes animals, plants and ……………….
Answer
Answer: micro-organisms
Question 3.
Species diversity is the diversity at the ………………. level.
Answer
Answer: species
Question 4.
There are more than ………………. species of ants on earth.
Answer
Answer: 20,000
Question 5.
Some extreme estimates of species range from 20 to ………………. million.
Answer
Answer: 50
Question 6.
Out of every 10 animals on this planet, 7 are ……………….
Answer
Answer: insects
Question 7.
The relation between species richness and area for a wide variety of taxa turns out to be a rectangular ……………….
Answer
Answer: hyperbola
Question 8.
The term biodiversity was purposed by ……………….
Answer
Answer: W.G. Rosen
Question 9.
Bio diversity increases from the ………………. to the equator.
Answer
Answer: poles
Question 10.
………………. parks are reserved for the conservation of animals only.
Answer
Answer: National
Write True or False
Question 1.
National parks are reserved for the conservation of animals only.
Answer
Answer: False
Question 2.
Fourteen Biosphere reserves have been planned in India.
Answer
Answer: True
Question 3.
Deforestation makes floods and droughts more frequent.
Answer
Answer: True
Question 4.
The term biodiversity was purposed by W.G.Rosen in 1985.
Answer
Answer: True
Question 5.
The group fungi has more species than all the vertebrate species combined.
Answer
Answer: True
Question 6.
Deforestation does not leads to alternation of local weather conditions.
Answer
Answer: False
Question 7.
Sacred groves are found in Khasi and Jaintia Hills of Meghalaya.
Answer
Answer: True
Question 8.
The historic Convention of Biological Diversity was held in 1990 at Rio de Janeiro.
Answer
Answer: False
Question 9.
World Summit on Sustainable Development was held in 2002 at Johannesberg.
Answer
Answer: True
Question 10.
More than 1.5 million species have been recorded in the world.
Answer
Answer: True
One Word Questions
Question 1.
What do you mean by heterogeneity?
Answer
Answer: Immense diversity.
Question 2.
Where are the largest Amazonian main forests found?
Answer
Answer: South America.
Question 3.
More than 70 percent of all the species recorded on earth are
Answer
Answer: Animals.
Question 4.
22 percent of the total species on earth comprise of
Answer
Answer: Plants.
Question 5.
Name one country located near the equator which has nearly 1,400 species of birds.
Answer
Answer: Colombia.
Question 6.
The graph between species-area relationships is
Answer
Answer: Hyperbola.
Question 7.
Who found that plots with more species showed less year to year variation in total biomass?
Answer
Answer: Tilman.
Question 8.
More than 25 percent of the drugs currently sold in the market worldwide are derived from
Answer
Answer: Plants.
Question 9.
In which year was the historic Convention of Biological Diversity held?
Answer
Answer: 1992.
Question 10.
Where was the World Summit on Sustainable Development held in 2002?
Answer
Answer: Johennesburg.
Match the Following
| Column I | Column II |
| 1. In situ | A. Meghalaya |
| 2. Ex situ | B. Rajasthan |
| 3. Khasi Hills | C. Madhya Pradesh |
| 4. Aravali Hills | D. On site conservation |
| 5. Sarguja | E. Off site conservation |
Answer
Answer:
| Column I | Column II |
| 1. In situ | D. On site conservation |
| 2. Ex situ | E. Off site conservation |
| 3. Khasi Hills | A. Meghalaya |
| 4. Aravali Hills | B. Rajasthan |
| 5. Sarguja | C. Madhya Pradesh |
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