Question

There is no wastage of pollen grain in self pollination ​

Answer 1

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$\huge\underline{Answer:}$

During self-pollination, the pollen grains are not transmitted from one flower to another. As a result, the wastage of pollen is less.

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Answer 2

yeah because the insects carefully transfer the pollen grains from one flower to another, and if one pollen grains fell down it will fall on another flower.