SSC CGL 2022 PYQ — Question 27

SSC CGL - 03 Dec 2022 - Shift 2 • General Awareness • Q27

The bare ground between plants is covered with a layer of organic matter in order to retain soil moisture. This method is called ______.

Show answer & explanation

Correct answer: A

Explanation

The correct answer is Option 1 i.e. Mulching.

Mulching:

  • The bare ground between plants is covered with a layer of organic matter such as straw. It Supports retaining soil moisture. This method is known as Mulching. 
  • Mulching is a protective layer of a substance that appears over the surface of the soil.
  • Mulching supports the preservation of soil moisture, improving the fertility of the soil, and inhibiting weed growth.

Rock Dam:

  • A rock embankment is built across a drainage channel or other suitable area to form a short-term basin for sediment storage.
  • Rock dams are mainly used to regulate water velocity, conserve soil and raise land.

Shelter Belt:

  • Planting rows of trees on one side of a field to stop the wind from eroding the soil.
  • They are referred to as shelter belts

Contour barriers:

  • these contour strips prevent downslope flowing water and soil granules. These barriers slow down the water movement and inhibit its erosive force.