Environmental pollution is a term that refers to all the ways by which man pollutes his surroundings . Man dirties the air with gases and smokes , poisons the water with chemicals and other substances , and damages the soil with too many fertilizers and pesticides . Man also pollutes his surroundings in various other ways . For example , people ruin natural beauty by scattering junk and litter on the land and in the water . They operate machines and motor vehicles that fill the air with disturbing noise . Environmental pollution is one of the most serious problems facing mankind today . Air , water , and soil are necessary to the survival of all living things . Badly polluted air can cause illness , and even death . Polluted water kills fish and other marine life . Pollution of the soil reduces the amount of land that is available for growing food . Environmental pollution also brings ugliness to man's naturally beautiful world .
46. What makes the air polluted ?
47. In what way do people poison the water ?
48. How does man damage the soil ?
49. In what way do people ruin natural beauty ?
50. According to the text , what is one of the serious problems facing mankind today ?
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Sinh Học lớp 12
