Some agent always disperses seeds, either it's external actor self or internal sometimes. First fruit we consider as 1) Dipterocarpus - By wind-Structures such as wings 2) Coconut- by water- fibrous covering 3) Mango- By animals- most of the time seed is thrown away after eating fleshy part 4) Castor- By animals- have appendages to cling to animals 5) Rubber- by explosive mechanism- due to change of pericarp the fruits burst and seeds are thrown away. These are the few fruits we talked about, and many more are there, and the method also varies, and it is due to this reason we get the fruits.