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: Perspiration from human body helps in cooling the body. Reason: A thin layer of water on the skin enhances its emissivity.A) If both assertion and reason are true and the reason is the correct explanation of assertion.
B) If both assertion and reason are true but the reason is not the correct explanation of the assertion.
C) If assertion is true statement but reason is false.
D) If both assertion and reason are false.
Correct Answer: C
Solution :
When water leaver the body through perspiration energy content of molecules remained in body decreases, therefore temperature also decreases. Thus, perspiration from human body helps in cooling the body. Hence, option (c) is true.
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