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2013-04-10T19:05:41+00:00

Factories should use divices to reduce smoke,dust and harmful substances.Scientists should try to use natural energy in the environment.Try to cut less trees to provide paper,wood.Not to put industrial and nuclear wastes into seas,rivers and lakes.To arrange more wildlife sanctuary for rare species of animals.To take part of environmental projects,includingtree planting,wild life   protection and etc.