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SOIL
Explain why, the soil covered by vegetation is not eroded easily but the bare soil is eroded a t
41. How do trees and other plants prevent soil erosion ?
42. What are the various ways in which soil erosion can be prevented ?
43. Write the differences between sandy soil and clayey soil.
44. Make a list of the important uses of soil.
45. Explain why, there is growing demand to ban polythene bags and plastics.
Long Answer Type Questions
46. What is meant by 'soil profile' ? Draw a sketch of the soil profile and label the various layers. Name
two situations in which we can see the soil profile at a place.
47. What is meant by sandy soil, clayey soil and loamy soil ? Give any two properties each of sandy
clayey soil and loamy soil.
48. What is soil? How is soil formed ? Describe an activity to show that soil contains water.
49. What is meant by 'soil erosion'? State the cause of soil erosion. What are the effects of soil erosion
50. What is meant by soil pollution ? Name any four things which can cause soil pollution. How cai
pollution be prevented ?
Multiple Choice Questions (MCQs)
51. In addition to the rock particles, the soil contains :
(a) air and water
(b) water and plants
o minerals, organic matter, air and water
(d) water, air and plants
52. The water-holding capacity is highest in:
la) sandy soil
(b) clayey soil
(c) loamy soil (d) mixture of sandy and loam
53. Which of the following present in soil has the smallest sized rock particles ?
(a) gravel
(b) silt
(c) elay
(d) sand
* The best soil for growing paddy is the one which has :
(b) high percolation rate of watervarious ways by which soil erosion prevented
Answers
Answered by
8
Answer:
a.trees and other plant prevent the soil erosion because their roots hold the soil tightly which cannot be blown by air ,water ,and wind .
b.1.soil erosion can be prevented by stopping deforestation .
2.it can be prevented by avoiding overgrazing.
Answered by
4
Answer:
Explanation:
a.trees and other plant prevent the soil erosion because their roots hold the soil tightly which cannot be blown by air ,water ,and wind .
b.1.soil erosion can be prevented by stopping deforestation .
2.it can be prevented by avoiding overgrazing.
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