Free Environmental Issues (Daily Quiz: 4) NEET Biology Questions & Answers with Detailed Explanation & Full Review

Question-1

Assertion:
UV rays are highly injurious to living organism.
Reason:
DNA proteins of living organism preferentially absorb UV rays and its high energy breaks the chemical bonds within these molecules.

(a) If both the assertion and reason are true but the reason is not a correct explanation of the assertion.

(b) If both the assertion and the reason are true and the reason is a correct explanation of the assertion.

(c) If the assertion is true but the reason is false.

(d) If both the assertion and reason are false.

Question-2

Climate of the world is threatened by

(a) increasing amount of atmospheric carbon dioxide

(b) decreasing amount of atmospheric oxygen

(c) decreasing amount of atmospheric carbon dioxide

(d) increasing concentration of atmospheric oxygen.

Question-3

Given diagram represents the greenhouse effect.

1. Greenhouse gases absorb infrared radiation from the earth. The absorbed radiations again come to earth's surface and heat it up.
2. $CO_2, CH_4,$ ,CFCs and $N_2O$ are the gases responsible for greenhouse effect.
3. Increase in the level of greenhouse gases results in considerable heating of earth, leading to El nino effect.

Which of the statements given above are correct?

(a) II and III

(b) I and II

(c) I and III

(d) I, II and III

Question-4

The Air Prevention and Control of Pollution Act came into force in

(a) 1981

(b) 1975

(c) 1985

(d) 1990

Question-5

Which is a non-degradable pollutant?

(a) Polythene

(b) Smoke

(c) Copper scraps

(d) Iron scraps