Question

Given below are four statements each with two blanks.
Select the option which correctly fills up the blank in any two statements.
(i) Bhopal gas disaster took place on_____ 1984 and this day is now observed as the______ day in India to make the anniversary of the Bhopal gas disaster.
(ii) _____ is a biodegradable pollutant while_____ is a non-biodegradable pollutant.
(iii) When pollutants are released from a single point it is called______ pollution, but when it is over a large area, then it is called_____ pollution.
(iv) ______ is the world's most problematic aquatic weed, introduced in India for its lovely flowers, also called as______.

• A. (i) December 5, National pollution prevention (iv) Parthenium, terror of Bengal
• B. (i) December 2, Bhopal gas tragedy (ii) DDT, sewage
• C. (ii) Sewage, DDT (iii) point source, non point source
• D. (iii) line source, fixed source (iv) Eicchornia,tiger of bengal

Answer 1

The correct option is C (ii) Sewage, DDT (iii) point source, non point source

(i) Bhopal gas disaster took place on 3rd December 1984 and this day is now observed as the Bhopal gas tragedy day in India to make the anniversary of the Bhopal gas disaster.

(ii) Sewage is a biodegradable pollutant while DDT is a non-biodegradable pollutant.

(iii) When pollutants are released from a single point it is called point source pollution, but when it is over a large area, then it is called non-point source pollution.

(iv) Parthenium is the world's most problematic aquatic weed, introduced in India for its lovely flowers, also called the terror of Bengal.

So the right answer is '(ii) Sewage, DDT (iii) point source, non-point source'.