3. Write the answers in your own words.
(a) What is meant by vibration ?
(b) Explain with the help of practical
examples how sound is propagated
through solids.
(c) What is meant by noise pollution?
(d) What measures will you take to
control noise pollution ?
(e) write any two cause of noise pollution
Answers
Answered by
3
Answer:
answer 1. very fast oscillation are called vibration
your second answer is on picture
answer 3. sustained pressure of excessive unwanted and harmful noise in the environment is called noise pollution .
- answer 4. use of loudspeakers should be avoided in any case
- volume of music system, TV, etc should be kept Low so that other should not get disturbed.
- noise produced by industries should be set -up away from residential area.
- use of horns should be minimized.
- do not buy crackers with produce loud sound.
Do
any four point
answer 5.CAUSES OF NOISE POLLUTION
- Traffic noise.
- Air traffic noise.
- Construction sites.
- Catering and night life.
- Animals.
- Physical.
- Psychological.
- Sleep and behavioural disorders.
Do any two two
Attachments:
Similar questions