Environmental Science TNPSC Group 4 VAO Questions

Botany & Zoology

Environmental Science MCQ Questions

1.

Depletion of ozone layer is caused by

A.

Chloroflurocarbon

B.

NH3

C.

H2O

D.

All of these

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ANSWER :

A. Chloroflurocarbon

2.
Zooplankton is
A.
Producer
B.
Consumer
C.
Decomposer
D.
Transformes
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ANSWER :
B. Consumer
3.
Which one of the following is responsible for depletion of ozone?
A.
Pesticides
B.
Weedicides
C.
Fertilisers
D.
Smoke emmision from the vehicles
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ANSWER :
D. Smoke emmision from the vehicles
4.
The environmental pollution is mainly due to
A.
Human activities
B.
Intensive cultivation
C.
Animals and Plants
D.
Micro organisms
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ANSWER :
A. Human activities
5.
Environment consists of
A.
Biotic components
B.
Abiotic components
C.
Both Biotic components and Abiotic components
D.
None of these
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ANSWER :
C. Both Biotic components and Abiotic components
6.
_______ is called Farmer's friend
A.
Roundworm
B.
Earthworm
C.
Hookworm
D.
Pinworm
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ANSWER :
B. Earthworm