Explain the following : In cold regions in winter, the rocks cracks due to anomalous expansion of water.

Explanation

i. When water is accumulated in a fissure of a rock, as temperature in cold climate dips below `4^(@)C`, water starts expanding instead of contracting.
ii. Between temperature fall of `4^(@)C " to "0^(@)C`, volume of water increases continuously due to anomalous behaviour of water.
iii. At the same time, rocks undergo contraction.
iv. As a result, rocks experience force applied by water and crack.