SOIL RESOURCE
17. What is soil? Why is it referred to as a living system?
18. Name the factors on which soil formation depends.
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Ans 17.....Soil means the uppermost layer of the earth's crust, which contains the organic as well as mineral matter necessary for the growth of plants. Soil is a living system because it contains living organisms: plants, animals, fungi, protozoa, bacteria, archaea.
Ans 18......Parent material, climate, biota (organisms), topography and time.
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