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प्रश्न
What is soil erosion?
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उत्तर १
The blowing away or washing away of land surface by wind or water is known as soil erosion.
उत्तर २
The removal of topsoil which is rich in humus and nutrients by flowing water or wind is known as soil erosion. If this process continues further then all soil may get washed away and the rocks underneath may get exposed. It may lead to the loss of all valuable resources because nothing grows as such on the rocks.
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संबंधित प्रश्न
We know that many human activities lead to increasing levels of pollution of the air, water-bodies and soil. Do you think that isolating these activities to specific and limited areas would help in reducing pollution?
What is weathering? Elucidate in the various types of weathering.
What is soil? How does it form?
Define soil erosion. Give its causes, effects and preventive measures.
Mention briefly the role of decomposers of cycling of materials.
Which of the following is not a greenhouse gas?
How can we prevent the loss of topsoil?
Fertile soil has lots of humus. Why?
Why step farming is common in hills?
Carbon dioxide is necessary for plants. Why do we consider it a pollutant?
