The maximum amount of water which a soil can hold after free drainage has ceased is called as________?

At the end of hydraulic structure, the upward force of sub-soil water just becomes equal to the submerged weight of soil grains Then exit gradient will be called________?

Which one of the following does not contain RNA________?

Total complete resistance against any adverse condition is called________?

In a population gene frequencies remain constant when there is________?

Ginger and turmeric are propagated by________?