Question

1.(i)What determines the shrillness of the sound produced by a body?

(ii) What are the three main causes of oceanic sound pollution?​

Answer 1

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What determines the shrillness of the sound produced by a body?

⇛Shrillness of the sound produced by a body is determined by the frequency of the vibrating body.

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What are the three main causes of oceanic sound pollution?

• ⇛ Oceanic sound pollution is caused by

(a) Underwater blasting

(b) Underwater Dredging

(c) Underwater earthquakes

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Answer 2

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❶ What determines the shrillness of the sound produced by a body?

Answer : The shrillness of the sound produced by a body is determined by the frequency of the vibrating body.

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❷ What are the three main causes of oceanic sound pollution?

Answer : Oceanic sound pollution is caused by,

1. Under water blasting.
2. Dredging
3. Under water earthquakes.