Question

What is soil erosion and how can it be avoided

Answer 1

The removal of top layer of soil is called soil erosion
It can be avoided by afforestation

Answer 2

Soil erosion is removal of top layer of soil by either naturally or human- made i.e either by natural agents like water, strong winds , etc or human- made like cutting of trees..

It can be avoided by afforestation (planting more trees),and terrace farming can also help reduce soil erosion

Hope it satisfys .....