Write the various methods of cross pollination.
The transfer of pollen grains of a flower to the stigma of another flower of a different plant of the same species is called cross pollination or allogamy.
Various methods of cross pollination are entamophily (pollination by insects), anemophily (pollination by wind), hydrophily (pollination by water), zoophily (pollination by animals) and ornithophily(pollination by birds).