Question

find out the different between rate of percolation and the amount of water retained

Answer 1

Percolation refers to the amount of water seeping down . while amount of water retained refersto the amount of water held . suppose you pour 1 000 M L of water in the soil out of which 600 ML seeps down . so we can say that
amount of water retained = 400 ml
amount of water percolated = 600 ML