Noise Pollution

Q.

Which of the following cause noise pollution?

1. Loud music

2. Heavy machines

3. Talking in classroom

4. Flowing of river

Q. Regarding the assertion and reason, choose the correct option.
Assertion [A]: Inhabitants close to busy airports are likely to experience health hazards.
Reason [R]: Sound levels of jet planes usually exceed 150 dB.

1. Both A and R are correct and R explains A
2. A is correct but R is incorrect
3. Both A and R are correct but R does not explain A
4. Both A and R are incorrect

Q.

Which of the following is not a harmful effect of noise pollution?

1. Skin cancer

2. Headache

3. Sleeplessness

4. Hearing loss