Neem is used as a natural pesticide because

Options :
  1. it decomposes easily in nature
  2. it is not costly
  3. it is more effective than other pesticides
  4. the neem extract contain Azadirachtin which functions as insecticide
Answer and Explanation :-

Answer: Option 4


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Besides the noble art of getting things done, there is the noble art of leaving things undone. The wisdom of life consists in the elimination of non-essentials.
-Lin Yutang The Importance Of Living