Question

The blowing away of loose soil in large quantity is known as___
A) Gully erosion
B) Sheet erosion
C) Wind erosion
D) Soil erosion

Answer 1

Hint: The soil's layers are called horizons. The topsoil layer is considered the uppermost horizon. A mixture of sand, silt, clay and broken down organic matter, called humus, is the topsoil layer. Humus is a rich organic matter, heavily decomposed, and often made of dead plants, crunched-up leaves, dead insects and twigs.

Complete answer:
The blowing away of large amounts of loose soil is known as soil erosion. Soil erosion occurs when soil is lost at a greater rate than it is produced by the action of wind and water.

Soil erosion may be a gradual, relatively unnoticed process or may occur at an alarming pace that causes significant topsoil loss. Reduced crop production capacity, lower surface water quality and degraded drainage networks can indicate the loss of soil from farmland.

Intensive irrigation, deforestation, highways, anthropogenic climate change and urban sprawl are among the most important human activities in terms of their effects on the erosion stimulus. There are however, several methods of mitigation and remediation that can limit or limit the degradation of fragile soils.

Four key forms of soil erosion are produced by rainfall, and the surface runoff that may result from rainfall: splash erosion, sheet erosion, rill erosion, and gully erosion.

Hence the correct answer is option ‘D’.

Note: Soil erosion is minimized by:
a) Maintaining a good , perennial cover for plants.
b) Mulching.
c) Planting a cover crop in vegetable gardens, for example, winter rye. ...
d) In highly used areas where vegetation is difficult to create and maintain, the placement of crushed stone, wood chips, and other similar materials.