The water from a hand pump is warm in winter because: – McqOptions

MCQOPTIONS

1.	The water from a hand pump is warm in winter because:
A.	our body is cold in winter and water appears to be warm
B.	the temperature inside the earth is higher than the atmospheric temperature
C.	inside water comes out and absorbs heat from the environment
D.	the pumping process causes friction which warms up the water
Answer» C. inside water comes out and absorbs heat from the environment

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