Question

The composition of four soil sample collected from different regions are shown in Fig 9.9 ? (i)which soil had the most amount of humus (ii) which soil had the least amount of gravel (iii) Does sample A contain more clay than sample B (iv) sample B had the lowest number of earthworms. Try to explain why. (v) which of the soils is suitable for growing rice. (vi) which of the soils is suitable for growing wheat
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Answer 1

Answer:1) Sample D.

2) Sample A.

3) Yes.

4) Sample B had the lowest number of earthworms.Due to the huge amount of gravel present in earthworms where earthworms improve the texture of the soil. By moving through the soil they open channels for roots to grow into. Their actions also help air to enter and the water to drain from it

5) Clayey soil.

6) Loamy soil.