Tag: soil erosion and conservation
Questions Related to soil erosion and conservation
Which of the following is not the function of forest?
-
It is used to make paper.
-
Resin, gum and drugs are obtained.
-
Controls flood.
-
Causes soil erosion.
Forests and trees make an essential contribution to food security by helping to maintain the environmental conditions needed for agricultural production. They stabilize the soil, prevent erosion, enhance the land's capacity to store water and moderate air and soil temperatures.
Soil erosion can be prevented by
-
Terrace farming
-
Intensive cropping
-
Deforestation
-
Both A and B
Soil erosion is caused due to
-
Strong winds
-
Heavy rains
-
Keeping the fields fallow for a long time
-
All of the above
Which of the following prevents soil erosion?
-
Animals
-
Rocks
-
Plants
-
Mountains
Plants prevents soil erosion. Plant roots firmly bind the soil in the absence of plants, soil becomes loose so it can be moved by wind and flowing water.
The removal of land surface by water, wind or ice is known as
-
Seepage
-
Sewage
-
Erosion
-
None of the above
When the upper layer is displaced from one area to another, the process is called soil erosion. Erosion of land is a natural process. It starts with the displacement of soil particles under the influence of natural factors like water, wind or even ice. The forceful and rapid movement of all these leads to movement of soil along with it.
More soil erosion occurs where there is
-
No rainfall
-
Low rainfall
-
High rainfail
-
None of the above
Which of the following phenomena take place when the top layer of soil is exposed?
-
Soil erosion
-
Infertile soil
-
Both A and B
-
Good quality new soil
If the top layer or soil is exposed, then it will gradually expose the lower layer of soil, which is hard and rocky in nature. This type of soil is less fertile as it contains less humus. Continued soil erosion will make the land barren or infertile.
Removal of top fertile layer of soil by wind or water is called as
-
Leaching
-
Erosion
-
Siltation
-
Weathering
Deforestation causes
-
Soil erosion
-
Soil pollution
-
Water pollution
-
Noise pollution
In deforestation, there is the cutting or the removal of plants. The roots of the plants allow the soil to be held due to the presence of water. Due to deforestation, the water present in the soil gets evaporated resulting in a barren land. This barren land is prone to soil erosion which results in the loss of the upper layer of the soil. When new trees are planted, the soil erosion can be prevented.
Soil erosion is due to
-
Fast running rivers
-
Heavy rains
-
Occasional rains
-
Wind
The process of soil erosion is the washing away of the upper fertile layer of the soil. The roots of the trees and plants are responsible for holding the soil. When there is heavy rain and there are no plants in the area, the layer of the soil gets carried away along with the water.