Every new life come to the world always needs a long process .life is a amazing thing of universe .As far as we know ,earth is the only planet which could creat life !In the earth ,without air water ,we couldn't live !but ,now ,the life that created by earth destroying the earth .life always thought is amazing .but ,now,in my opinion ,the life start become more and more bad .It just concern about themselves ,they don't care about the earth at all.I hope the life can pay more attention to the earth !