The water from a hand pump is warm in winter because
A. our body is cold in winter and the water appears to be warm
B. the temperature inside the Earth is higher than the atmospheric temperature
C. the pumping process causes friction which warms up the water
D. inside water comes out and absorbs heat from the environment
Answer: Option B
Related Questions on Heat and Thermodynamics
A. Zeroth Law of Thermodynamics
B. First Law of Thermodynamics
C. Second Law of Thermodynamics
D. Third Law of Thermodynamics
A black body can absorb radiations of
A. lower wavelengths only
B. intermediate wavelengths only
C. higher wavelengths only
D. all wavelengths

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