Environmental pollution is a term that (1)______ to all the ways by which man pollutes his
surroundings. Man dirties the air with (2)______ gases and smoke, (3)_____ the water with
chemicals and other substances, and damages the (4)_____ with too many fertilizers and pesticides.
Man also pollutes his surroundings (5)_____ various other ways. For example, people ruin natural
beauty by (6)_____ junk and litter on the land and in the water.
 Environmental pollution is one of the most serious problems facing mankind today. Air, water
and soil are necessary to the (7)_____ of all living things. Badly polluted air can cause illness, and ______ death. Polluted water kills fish and other (8)_____ life. Pollution of soil reduces the amount
of land that is available for growing food. Environmental pollution also brings ugliness to man’s
natural beautiful world.
23. A. means B.reduces C. provides D.  refers 
24 . A. thick B.exhaust C.natural D. influent
 25. A.soil B.forests C. streets D.beaches

 26. A. on B. in C. by D. with
27 A. spoiling B. leaving C. scattering D. gathering
 28.A. growth B. environment C. development D. survival

29A. so B. ever C.even D.too

30. A.marine B.animal C.human D.plant