1. If people breath contaminated air, they will have breathing problems.
2. Many people in this area have cholera because they drink untreated water.
3. The street doesn’t look attractive because there’s a lot of rubbish.
4. If i were you, i would take these bottles to the bottle tank
5. If people don't care the environment, they won't try to save it
6. The river wouldn't be so polluted if factories didn't dump waste in it
7. We will be less worried if oil spolls don't have suck destructive effects
8. If we destroy the ozone layer, what will save us from the UV rays ?
9. Will we happy if air pollution in the world is a better place?
10. If there was/were no more pollution, would the world be a better place?