Question

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Answer 1

Answer:

O horizon is found in forests only it needs an abundance of plants and trees to form O horizon soil. Grasslands do not have plants and trees required for the formation of O horizon soil. O horizon soil decomposing bacteria and worms which break down the organic material into top soil.

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Answer 2

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2. The condition required for O horizon is seen in forests where their is less pollution. But in grassglans the conditions required by o horizon is difficult to be found. So O horizon is found only in forest but not in grass lands

3. Yes the top soil does get affected by Soil pollution. As it is the top most layer; it will get the one that is first affected. The fertility of the soil is slowing destroyed by the pollutants. By this way slow destroy of soil (top layer) takes place .

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