If there were not somany billboards in our city, people could enjoy the view.
If there were not so much light in the city at night, we could see the stars clearly.
If we did not turn on the heater all the time, we would not have to pay three ...
If the karaoke bar did not make so much noise almost every night, the residents would not complain to its owner.
Radioactive pollution is very dangerous since it can cause abnormal growth.
Because leaves are damaged, the tree cannot get enough food energy to stay healthy
If I had much money now, I could buy a house in Phu Cuong.
If there were not a change in animals' living patterns, light pollution would not happen.
Because of dangerous acid rain, trees' leaves are damaged.