1) If people didn’t litter,there____________ be so much contamination a) wouldn’t have litter b) would c) wouldn’t 2) the rain forest would completed disappear if we _____________the current rate of deforestation a) continued b) had continued c) would be continued 3) If industries __________________ so much pollution,the air would be cleaner a) had generate b) didn’t generate c) will have 4) climate change impact ____________ be reduced if people ate less meat a) would b) wouldn’t c) had 5) If factories _________________ the air that much, our lungs would be less sick a) didn’t pollute b) had pollute c) wouldn’t 6) If people __________________more radiation, the sun would shine brightly on a naked planet. a) produced b) had produce c) will produce 7) If we didn’t pollute the rivers, the fish ________________die. a) had would b) would c) wouldn’t 8) If I _______________ the trees I would breathe better air a) will took care of b) took care of c) had took 9) If we used renewable energy, humanity ______________live longer a) wouldn’t b) have would c) would 10) If we________________more the air would be cleaner a) had recycled b) recycled c) will recycled

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