1) ..............is polluted by gases from cars. a) air b) soil c) water 2) ..........is polluted by throwing wastes and sewage in it  a) water b) air c) soil 3) polluted ...............damages our livers. a) air b) water c) soil 4) ................. reduces pollution. a) garbage b) smoke c) recycling 5) We should recycle using ................ a) filters b) cans c) bins 6) soil is polluted by ...................... a) garbage b) sewage c) smoke 7) polluted air damages .............. a) nose b) lungs c) eye d) 8.1 million

pollution grade 2

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