Question

Define the following :
i. Sheet erosion
ii. Soil conservation
iii. In situ soil

Answer 1

1. Sheet Erosion: When the vegetation cover of an area is removed, the rainwater instead of seeping into the ground washes down the slope. A complete layer is carried along with water in a larger area. It is called sheet erosion.

2.Soil Conservation: Preventing soil erosion by taking various measures such as plantation of trees, strip cropping and contour ploughing is known as soil conservation.

3. In situ soil: When soil is formed at its original position by the weathering of the parent rock, it is known as in situ soil like the black soil.