Directions: In each of the following questions, a statement of Assertion (A) is given followed by a corresponding statement of Reason (R) just below it. Of these statements, mark the correct answer as: (A) If both Assertion and Reason are true and Reason is correct explanation of Assertion (B) If both Assertion and Reason are ture but Reason is not the correct explanation of Assertion (C) If Assertion is true but Reason is false (D) If both Assertion and Reason are false
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 arid Reason are true and Reason is the correct explanation of Assertion.
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