Pollination is a process of transfer of male gamete (pollens) to the female gametes. It is carried out by agents like wind, insect etc. For pollination to happen there is no need of fertilisation of gametes i.e. their union. Fertilisation is union of male and female gamete and this process is facilitated by pollination. By pollination pollens are brought to eggs so that they can fuse and fertilisation can take place.
There fore, Pollination may occur without fertilisation but fertilisation will not take place without pollintion.
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