Biology MCQs for Class 12 Chapter wise with Answers Download Free PDF: MCQs of biology class 12 Chapter 15 Biodiversity and Conservation is very important for the students who want to get good marks in their CBSE RBSE NCERT Board Exams. Neet MCQ
MCQs of Biology Class 12 Chapter 15 Biodiversity and Conservation with answers PDF Download
1. log S = log C + Z log A
In the given equation of species-area relationship, the value of regression coefficient for a whole continent, would be
(a) 0.1-0.2
(b) 0.5-0.7
(c) 0.6-1.2
(d) 0.3-0.5
Answer: c
2. Which of the following organisation is responsible for maintaining the Red Data Book?
(a) IDRI
(b) IUCN
(c) UNESCO
(d) USDA
Answer: b
3. From his long term ecosystem experiments, David Tilman showed that
(a) decreased diversity contributed to higher productivity
(b) decreased diversity contributed to decreased productivity
(c) increased diversity contributed to increased productivity
(d) increased diversity contributed to decreased productivity
Answer: c
4. Which of the following is a hot-spot of biodiversity in India?
(a) Western Ghats
(b) Indo-gangetic plain
(c) Eastern Ghats
(d) Aravalli Hills
Answer: a
5. Which among the following is not a method of in-situ conservation?
(a) National Park
(b) Botanical garden
(c) Wildlife sanctuary
(d) Ramsar sites
Answer: b
6. The World Summit on Sustainable Development (2002) was held in
(a) Brazil
(b) South Africa
(c) Sweden
(d) Argentina
Answer: b
7. The most important cause of extinction of animals and plants, especially in tropical rain forests is
(a) habitat loss
(b) afforestation
(c) pollution
(d) soil erosion
Answer: a
8. The enormous number of varieties of mango in India represents
(a) genetic diversity
(b) species diversity 1
(c) ecological diversity
(d) hybridisation programmes
Answer: a
9. Which one of the following is not a major characteristic feature of biodiversity hot spots? | Mod Education
(a) Large number of species
(b) Abundance of endemic species
(c) Large number of exotic species
(d) Destruction of habitat
Answer: d
10. Which of the following is not a cause for loss of biodiversity? | Mod Education
(a) Destruction of habitat
(b) Invasion by alien species
(c) Keeping animals in zoological parks
(d) Over-exploitation of natural resources
Answer: c
11. The extinction of passenger pigeon was due to | Mod Education
(a) increased number of predatory birds.
(b) over exploitation by humans.
(c) non-availability of the food.
(d) bird flu virus infection.
Answer: b
12. Which of the below mentioned regions exhibit less seasonal variations? | Mod Education
(a) Tropics
(b) Temperates
(c) Alpines
(d) Both (a) & (b)
Answer: a
More MCQ for Class 12 Biology Chapter 15
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: (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: (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: (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: (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: (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: (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: (d) Mammals
Question 8.
The worst dangerous threat to wild life is by
(a) Habitat destruction
(b) Hunting
(c) Overgrazing
(d) Exotic species
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: (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: (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: (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: (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: (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: (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: (a) Species confined to that region and not found anywhere else
