Environmental pollution is the biggest problem to the human race on this (31) ______ today. It means adding impurity to environment. The environment (32) __of____ earth, water, air, plants and animals. If it is polluted, then the (33) ____life_____ of man and nature will be hampered. It is true that trees are being cut down rapidly. The earth is becoming (34) ________. If pollution continues, the day is not far when our earth will be a boiling pan and become a desert (35) __________ it will be covered with sea water causing destruction of mankind. The garbage emitting foul smell, the (36) ________ plants and animals also cause air pollution. Noise pollution is another form of pollution. Noise from heavy machinery and vehicles can cause hearing problems and in extreme cases, (37) _________. The water of rivers and seas is being constantly polluted all over the world by various dangerous chemical and biological wastes. Mills and factories (38) _________ very harmful waste waters into many rivers and sea. Reckless application of chemical fertilizers, insecticides and pesticides pollutes the soil. Vegetables and fruits are quite (39) __________ today, because they contain the poison of insecticides and pesticides. (40) __________, it is necessary work together to reduce pollution so that the future generations can live in a healthy, unpolluted environment.
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Sinh Học lớp 12
