p a r r st o p e r f o r mt h e i r d i a l o g u eisn f r o n t o f t h e houseto savethefamily. class Acidrain isdestroying thetropicalforestsof theAmazon. 4nswerKey(Seeoverprinted answers) Thegreenhouse effecthasled to manyiceareasmeltingand sealevelsrising. Suggested AnswerKey Aerosols,toxicfumesand gasescausethe hole in the ozone A: Whatis theeffectof pollution? Ioyer to increase,which makesthe sun rays all the more 8r Wel[pollutioncausesverypoor air qualityin cities
p a r r st o p e r f o r mt h e i r d i a l o g u eisn f r o n t o f t h e houseto savethefamily. class Acidrain isdestroying thetropicalforestsof theAmazon. 4nswerKey(Seeoverprinted answers) Thegreenhouse effecthasled to manyiceareasmeltingand sealevelsrising. Suggested AnswerKey Aerosols,toxicfumesand gasescausethe hole in the ozone A: Whatis theeffectof pollution? Ioyer to increase,which makesthe sun rays all the more 8r Wel[pollutioncausesverypoor air qualityin cities
p a r r st o p e r f o r mt h e i r d i a l o g u eisn f r o n t o f t h e houseto savethefamily. class Acidrain isdestroying thetropicalforestsof theAmazon. 4nswerKey(Seeoverprinted answers) Thegreenhouse effecthasled to manyiceareasmeltingand sealevelsrising. Suggested AnswerKey Aerosols,toxicfumesand gasescausethe hole in the ozone A: Whatis theeffectof pollution? Ioyer to increase,which makesthe sun rays all the more 8r Wel[pollutioncausesverypoor air qualityin cities
p a r r st o p e r f o r mt h e i r d i a l o g u eisn f r o n t o f t h e houseto savethefamily. class Acidrain isdestroying thetropicalforestsof theAmazon. 4nswerKey(Seeoverprinted answers) Thegreenhouse effecthasled to manyiceareasmeltingand sealevelsrising. Suggested AnswerKey Aerosols,toxicfumesand gasescausethe hole in the ozone A: Whatis theeffectof pollution? Ioyer to increase,which makesthe sun rays all the more 8r Wel[pollutioncausesverypoor air qualityin cities
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