Supriya wants to carry out a fair test to find out how fast water can pass through equal quantity of four different types of soil. She sets up the experiment as shown in the given figure. She uses a stopwatch to measure the time taken by water to pass through each kind of the soil.

Which type of soil is suitable to grow paddy?

Options

A. S
B. P
C. Q
D. R

Answer

D

Explanation

The rate at which water passes through soil is called the percolation rate fo water in the soil. Water percolates through different types of soils at different rates. Clayey soil holds much water and does not drain in quickly. Paddy requires soil rich I clay and organic matter with high water holding capacity. Hence, soil R is suitable to grow paddy.