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Water pipes in hilly areas often burst on a cold frosty night, because
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- the material of which pipesare made contracts due tocold and so breaks
- water in the pipes freezesand on freezing water expands, so pipes break
- frost makes the pipes rusty, so they break
- None of these
- the material of which pipesare made contracts due tocold and so breaks
Correct Option: B
The temperature may fall below 00 C during cold frosty nights which converts the water inside the pipes into ice, resulting in an increase in volume. This exerts great force on the pipes and as a result, they burst.