Direction for: In each of the following questions a statement of Assertion is given followed by a corresponding statement of Reason just below it. Of the statements mark the correct answer as
Assertion: Agricultural output increased several times after introduction of DDT. Reason: DDT was the first insecticide used on a wide scale.A) A
B) B
C) C
D) D
E) E
Correct Answer: A
Solution :
DDT (Dichloro Diphenyl Trichloro Ethane) was first synthesized by a German graduate student in 1873. In 1939, Dr. Paul Muller rediscovered it. DDT is a broad spectrum and most famous pesticide of the world. In 1950, and 1960s farmers got high yield of crops by the use of DDT. Today DDT is banned due to its persistant and biomagnifying property and resistant mutant strain of the pests. So, both Assertion and Reason are true and Reason is the correct explanation of Assertion.
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