Pick up the correct statement from the following:

ANS:E - All the above.

All are correct.

i. The rise of the ground surface is due to frost, so called as frost heave.
ii. freezing water volume is more than the normal water.
iii. due to the melting of frost suctions will be formed.
iv. It can be explained by the relation S= volume of water/total volume if the volume of water reduces, there is frost formation, it results to decrease in magnitude. Degree of saturation is the ratio between volume of water to volume of voids. Since, this is the fact if the D of S decrease surely magnitude of frost heave will decrease. Volume of ice is more than volume of water, hence fully saturated soils frost heave is high.