The top most layer of soil is said to contain and support a lot of living organisms. It also has organic manure in it that supports the growth and development of plants.
So, option a "Humus, living organisms and soil" is the correct answer.
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Similar Questions
Q1
Question 18 Top-soil contains the following
(a) Humus and living organisms only (b) Humus and soil particles only (c) Humus, living organisms and plants (d) Humus, living organisms and soil particles.
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Q2
Question 18
Top-soil contains the following
(a) Humus and living organisms only
(b) Humus and soil particles only
(c) Humus, living organisms and plants
(d) Humus, living organisms and soil particles.
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Q3
Which layer of soil provides shelter for many living organisms?
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Q4
Water, wind, hydration and living organisms influence soil formation.
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Q5
Factors like water, wind and living organisms influence the soil formation.