If the factory installs a new filtration system, the industrial waste will be well-treated
If people build too many telephone poles and overhead power lines, there will be visual pollution
Unless people throw rubbish everywhere, we will place dustbins in many places
If people use contaminated water for cooking, their health will be badly affected
Due to the shortage of fresh water, the local people have to use water from the polluted river
Unless the factory treats its waste well, there will be serious water pollution
Owing to working in a noisy environment, Mr.Smith's hearing becomes worse
If the land is polluted, the farmers will be unable to grow crops
83 If the factory didn't install a new filtration system, the industrial waste wouldn't be well-treated
84 If people didn't build too many telephone poles and overhead power lines, there wouldn't be visual pollution
85 Unless we didn't place dustbins in many places, people would throw trash everywhere
86 If people didn't use contaminated water for cooking, their health wouldn't be badly affected
87 The local people have to use water from the polluted river due to not having enough fresh water
88 There wouldn't be serious water pollution unless the factory didn't treat its waste well
89 Mr.Smith's hearing becomes worse owing to working in a noisy environment
90 If the land weren't polluted, the farmers would be able to grow crops
