3. What is thermal pollution? Well, it’s a kind of pollution (led/ raised/ caused) by human activity that changes the surrounding temperature. 4. Too much (artificial/ dim/ natural )light is a form a light pollution. 5. If the air (was/ isn’t/ wasn’t) dirty, Nick wouldn’t sneeze so much. 6. Factories ( dump/ die/ damage ) industrial waste into lakes and rivers. 7. If the drinking water is untreated, an (effect/ outbreak/ disease) of cholera may happen. 8. Ships spill oil in oceans and rivers. This results( in/ to / on) the death of many aquatic animals and plants. 9. We should wear( earphones/ earrings/ earplugs ) when you go to concerts or other loud events to reduce the effect of noise pollution.

3. What is thermal pollution? Well, it’s a kind of pollution (led/ raised/ caused) by human activity that changes the surrounding temperature.

4. Too much (artificial/ dim/ natural )light is a form a light pollution.

5. If the air (was/ isn’t/ wasn’t) dirty, Nick wouldn’t sneeze so much.

6. Factories ( dump/ die/ damage ) industrial waste into lakes and rivers.

7. If the drinking water is untreated, an (effect/ outbreak/ disease) of cholera may happen.

8. Ships spill oil in oceans and rivers. This results( in/ to / on) the death of many aquatic animals and plants.

9. We should wear( earphones/ earrings/ earplugs ) when you go to concerts or other loud events to reduce the effect of noise pollution.

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