Which of the following is a pesticide?

Correct option is A

The correct answer is (a) DDT.
· DDT (Dichlorodiphenyltrichloroethane) is a well-known pesticide that has been widely used in agriculture and for controlling mosquito-borne diseases like malaria. However, its use has been banned or restricted in many countries due to its environmental and health impacts.
Information Booster:
· DDT: Initially used in World War II to control malaria and typhus among civilians and troops, DDT became a popular agricultural insecticide. Its persistent nature and accumulation in the food chain led to significant environmental concerns, including the decline of bird populations, which led to its ban in many countries.
· Other Options:
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· VCR: Stands for Video Cassette Recorder, which is not related to pesticides.
· HCL: Hydrochloric acid, a strong acid used in various industrial processes, not a pesticide.
· TNT: Trinitrotoluene, an explosive material, not a pesticide.