Question

Write 'T' for true sentences and 'F' for false sentences.
1. Pollution is the contamination of land, water and air by harmful substances.
2. All pollutants are human-made pollutants.
3. Land pollution is also known as soil pollution
4.The comfort level of sound for humans is 200 - 240 decibels (dB).​

Answer 1

Answer:

1. Pollution is the contamination of land, water and air by harmful substances.

➡️ true

2. All pollutants are human-made pollutants.

➡️ false

3. Land pollution is also known as soil pollution

➡️ true

Answer 2

Answer:

1. True
2. False
3. True
4. False (150 decibels only is enough to burst our eardrums.)

Hope this helps!