Question

What is fertilization?what do you mean by double fertilization?

Answer 1

fertilization is the action or process of fertilizing an egg or a female animal or plant, involving the fusion of male and female gametes to form a zygote.
Double fertilization is a complex fertilizationmechanism of flowering plants (angiosperms). This process involves the joining of a female gametophyte (megagametophyte, also called the embryo sac) with two male gametes (sperm)

Answer 2

fusion of male and female gametes are known as fertilisation.                                                double fertilization is a unique character of angiosperms,in this a female gametophyte join fertilise with 2 male gametes.