1. The air pollution leads to breathing problems.
2. If the water temperature increases, some aquatic creatures will be unable to reproduce.
3. He advised me not to buy that car.
4. These old pictures won't be hung in the living room.
5. If it doesn't stop raining, we won't go out.
6. Trees’ leaves are damaged because of acid rain.
7. Plastic bags are major source of waste, so we should not throw plastic bags everywhere.
8. If there weren't so many billboards in our city, people could enjoy the view.