The soil organisms are:?

A.Harmful to the plants growing in the soil
B.Useful to plants growing in the soil
C.Neither harmful nor useful to plants growing in the soil
D.Both harmful as well as useful to plants growing on the soil
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Good soil is:?

A.Which allows limited amount of water to be retained into it
B.Which allows water to pass through it very quickly
C.Which allows percolation the water slowly from it
D.Which holds whole of the water that enters into it
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