Answers for Science Quiz Based on Enviroment

1. Biodiversity Hotspot are characterized on the basis of:
A. Endemic owering plant and threat perception
B. Endemic owering plant 
C. Species of owering plants 
D. None of above

1. A 

2. The most important human activity, leading to the extinction of wildlife, is
A. Pollution of wildlife, is
B. Hunting for valuable wildlife products 
C. Introduction of alien species
D. Alternation and destruction of the natural habitats

2. D 

3. If we uncover half of the forest, covering of the earth,what crisis will be produced at most and at first?
A. Some species will be extinct 
B. Population and ecological imbalance will rise up 
C. Energy crisis will occur 
D. Rest half forests will maintain this imbalance

3. A 

4. What is the major cause of diminishing wildlife number?
A. Felling of trees
B. Cannibalism
C. Habitat destruction
D. Paucity of drinking water

4. C

5. Viable material of endangered species can be preserved by
A. Gene bank 
B. Gene library 
C. Gene pool
D. Herbarium

5. A

6. Which group of vertebrates comprises the highest number of endangered species?
A. Mammals 
B. Fishes 
C. Birds 
D. Reptiles

6. A

7. Which of the following is mainly responsible for the extinction of wild life
A. Pollution of air and water 
B. Hunting of 
esh
C. Destruction of Habitats 
D. All of these
7. D

8. Consider the following classi cation of Biodiversity:
1.Alpha-diversity { Between-community diversity
2.Beta-diversity { Within-Community diversity
3.Gamma diversity { Overall Biodiversity
Which among the above is/are incorrectly paired?
A. Only 2 
B. Only 3
C. 1 and 2 
D. 1, 2 and 3

8. C

9. What is the meaning of coral bleaching?
A. Paling of coral color or decline in zooxanthellae due to climate change 
B. Impacts of excessivesea trade on fishing industry 
C. Both a and b
D. None of the above

9. A

10.Trophic levels are formed by
A. only plants 
B. only animals 
C. only carnivorous 
D. organisms linked in food chain

10. D
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