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Trends in Economic Zoology — Bio Zoology STD 11 — Question

Tamilnadu BoardEnglish MediumSTD 11Bio ZoologyTrends in Economic Zoology2 Marks
Question
Which is called friends of farmers? why is it called so?
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Answer

→ The earthworm is called as farmer’s friends
→ Hence they play a vital role in maintaining soil fertility.

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