Fill in the blank with the correct form of the given word.

1.​ Many people don’t know about the danger of soil pollution.​

2.​ The river is seriously contaminatedby the factory’s waste.​

3. High blood pressure can be brought about by noise pollution.

4.​ The water color can show us how​ polluted the river is.​

5. ​A lot of dead fish are floating on the surface of the lake.​

1. Many people don't know about the........ danger....... of soil pollution. (dangerous)

2. The river is seriously....... contaminated........... by the factory's waste. (contaminate)

3. High blood...... .pressure.......... can be brought about by noise pollution. (press)

4. The water color can show us how..... pollution of........the river. (pollute)

5. A lot of...... dead......fish are floating on the surface of the lake. (die)