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    The globe (星球) we live is called e{#blank#}1{#/blank#}. It is the h{#blank#}2{#/blank#} of all the people and animals all over the w{#blank#}3{#/blank#}. It used to be c{#blank#}4{#/blank#} and beautiful. But t{#blank#}5{#/blank#} have changed. With the fast development of industries and agriculture, together with the population explosion, more and more r{#blank#}6{#/blank#} has been made. Garbage causes p{#blank#}7{#/blank#} and it is very harmful to the e{#blank#}8{#/blank#}. It is e{#blank#}9{#/blank#} duty to help protect the a{#blank#}10{#/blank#} and the l{#blank#}11{#/blank#} from being polluted. Let's work together and leave a b{#blank#}12{#/blank#} world to our kids.