Question

What do you mean by indirect pollination?

Answer 1

because it happens by wind air or insects

Answer 2

Indirect pollination is an important event in biology.

It refers to that part of biological reproduction in which an egg of an plant is fertilized by the sperm of another plant.

The self fertilization is the exact opposite of this process where the egg is fertilized is by the sperm from the same plant.

This self-fertilization is also known as the autogamy.