Wind breaks are a few rows of trees and shrubs planted on border of the crop fields at right angles to the direction of wind. This technique remains effective in checking of soil erosion by the wind.
Wind breaks are a few rows of trees and shrubs planted on border of the crop fields at right angles to the direction of wind. This technique remains effective in checking of soil erosion by the wind.
Top soil is the upper fertile biologically active layer of soil which is rich in minerals, organic matter, microorganisms (bacteria, fungi, earthworms and other animals). Roots of plants are mostly restricted to top soil.
Top soil is the upper fertile biologically active layer of soil which is rich in minerals, organic matter, microorganisms (bacteria, fungi, earthworms and other animals). Roots of plants are mostly restricted to top soil.
Contamination of soil with solid wastes, chemicals and excess of fertilizers and pesticides thus reducing its fertility and quality, is called soil pollution.
Contamination of soil with solid wastes, chemicals and excess of fertilizers and pesticides thus reducing its fertility and quality, is called soil pollution.
Name the type of water (present in the soil) which can be absorbed by plants.
Capillary water
Capillary water
See lessWhat is terracing?
Terracing is building flat crop fields on the slopes of hills so as to slow down the flow of water and checking soil erosion.
Terracing is building flat crop fields on the slopes of hills so as to slow down the flow of water and checking soil erosion.
See lessWhat is function of wind breaks?
Wind breaks are a few rows of trees and shrubs planted on border of the crop fields at right angles to the direction of wind. This technique remains effective in checking of soil erosion by the wind.
Wind breaks are a few rows of trees and shrubs planted on border of the crop fields at right angles to the direction of wind. This technique remains effective in checking of soil erosion by the wind.
See lessWhat is top soil?
Top soil is the upper fertile biologically active layer of soil which is rich in minerals, organic matter, microorganisms (bacteria, fungi, earthworms and other animals). Roots of plants are mostly restricted to top soil.
Top soil is the upper fertile biologically active layer of soil which is rich in minerals, organic matter, microorganisms (bacteria, fungi, earthworms and other animals). Roots of plants are mostly restricted to top soil.
See lessWhat is humification?
Humification is addition of partially decomposed organic matter or humus into weathered rock particles to form soil.
Humification is addition of partially decomposed organic matter or humus into weathered rock particles to form soil.
See lessName the types of weathering.
There are three types of weathering of rocks: physical, chemical and biological.
There are three types of weathering of rocks: physical, chemical and biological.
See lessWhat is weathering?
Weathering is pulverization of rocks to form fine particles.
Weathering is pulverization of rocks to form fine particles.
See lessWhat is paedogenesis?
Paedogenesis is the process of formation of soil from upper rocky crust of Earth.
Paedogenesis is the process of formation of soil from upper rocky crust of Earth.
See lessGive two effects of soil erosion.
(i) Reduction in fertility of soil; (ii) Desertification.
(i) Reduction in fertility of soil;
See less(ii) Desertification.
What is soil pollution?
Contamination of soil with solid wastes, chemicals and excess of fertilizers and pesticides thus reducing its fertility and quality, is called soil pollution.
Contamination of soil with solid wastes, chemicals and excess of fertilizers and pesticides thus reducing its fertility and quality, is called soil pollution.
See less