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प्रश्न
Soil erosion can be prevented by
विकल्प
raising forests
deforestation
excessive use of fertilizer
overgrazing by animals
उत्तर
raising forests
Explanation:
Soil erosion is the removal and transportation of the top layer of soil from its original position to another place with the help of strong winds and fast running rain water.
Soil erosion can be prevented by raising forests, as the roots of plants have an important role in preventing soil erosion. Roots hold the soil particles and reduce the exposure of soil to air and wind, thereby reducing its displacement.
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संबंधित प्रश्न
How is soil formed?
How are living organisms dependent on the soil? Are organisms that live in water totally independent of soil as a resource?
Write a note on how forests influence the quality of our air, soil and water resources.
What is weathering? Elucidate in the various types of weathering.
Give various sources and harmful effects of soil pollution.
Define soil erosion. Give its causes, effects and preventive measures.
Mention briefly the role of decomposers of cycling of materials.
Following are a few organisms
(a) lichen (b) mosses (c) mango tree (d) cactus Which among the above can grow on stones; and also help in the formation of soil? Write the mode of their action for making soil.
Fertile soil has lots of humus. Why?
Carbon dioxide is necessary for plants. Why do we consider it a pollutant?
