What is the purpose of animals and plants on Earth?
"And I (Allaah) created not the jinn and mankind except that they should worship Me (Alone)"
Allaah has created for man and has subjugated to him what is in the heavens and on earth, so that he may benefit from it and enjoy it, and meet his needs, and use it to help him to worship Allaah.
Allaah says (interpretation of the meaning):
"He it is Who created for you all that is on earth"