Sketch the cross section of soil and label the various layers.

How is clayey soil is useful for crops?

List the differences between clayey soil and sandy soil.

Razia conducted an experiment in the field related to the rate of percolation. She observed that it took 40 min for 200mL of water to percolate through the soil sample. Calculate the rate of percolation.

Explain how soil pollution and soil erosion could be prevented.