Arun visitied his grandfather’s farm and noticed that one of the workers was introducing earthworms in the soil. He quickly rushed to his grandfather and asked him the reason. His grandfather explained him the advantages of earthworm in soil improvement as it helps in decomposition of complex organic matter. (i) Why are earthworms also known detritivores? (ii) Explain fragmentation. (iii) Name the steps in the process of decomposition. (iv) What values are shown by Arun?
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(i) detritivores contain litter,dead decaying matter and earth worm decompose this materials. (ii) splitting of paramecium into two halves is known as fragmentation. decomposition takes by certain bacteria and it occurs in body of organism.
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