Question

Soil pollution is caused by

• A. Pesticides
• B. Herbicides
• C. Insecticides​
• D. All of the above

Answer 1

The correct option is D All of the above

Soil pollution is caused by
(i) Pesticides- These are synthetic toxic chemicals with ecological repercussions.​ Most of them are water insoluble ​
and non-biodegradable.​

(ii) Herbicides- Herbicides such as sodium chlorate ​
$\left(NaCl{O}_3\right)$, sodium arsenite $\left(N{a}_{3}As{O}_3\right)$ etc. are used to kill weeds. Due to toxic effect ​on mammals, their usage ​
has been restricted.

(iii) Insecticides​- Used to control insects, thereby curbing ​
diseases & protecting crops. They include ​chlorinated hydrocarbons, DDT, BHC etc. Due to adverse​ effects, use of DDT has been banned in india.

Hence, the correct answer is option (d).