Ex XII: Choose the best answer
1. There are many things a person can do to .....................the visual environment.
A. cause B. improve C. reduce D. increase
2. If noise pollution .......................,there is a change in animals’ living pattern.
A. does B. has C. happens D. exists
3. The temperature today is much ..........................than yesterday.
A. higher B. slower C. faster D. smaller
4. If you throw clothes or school things on the floor, it ...................visual pollution.
A. makes B. takes C. helps D. causes
5. What should be done to stop people from ...................litter to the environment?
A. doing B. throwing C. picking D. decreasing
6. I was so busy with my assignment that I couldn’t ...........my room for one week.
A. tidy B. sweep C. wash D. make
7. What are the ..................of air pollutants? Industry, agriculture or even transportation
A. benefits B. effects C. problems D. sources
8. The factory has already installed a new filtration system to ..................chemical waste.
A. increase B. provide C. treat D. solve
9. They have ..................trees around the factory to reduce air pollution.
A. planted B. raised C. increased D. had