3. In severe winter, in cold countries water pipes burst because A.Water expands on freezing B.Contraction of water pipes C.High atmospheric pressure D.Combined effect of all the above three
Option A Solution: Water in pipes freeze in cold countries. Due to the anomalous expansion of water, it expands instead of contacting when there is a fall in temperature below 4°c. So, the water pipes burst due to the excess space consumed by the ice after freezing.