Write True or False against each statement.
1. Sound can travel through space (above atmospheric layer).
2. Noise pollution is a source of keeping good health.
3. The loudness of a sound depends upon its amplitude.
4. The shrill sounds are high pitch sounds.
5. Dolphins can hear frequencies much higher than what humans can hear.
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Answer:
Sound cannot travel in a vacuum. (True)
Noise pollution may cause partial hearing impairment. (True)
the amplitude of vibration is large, the sound is feeble. (False)
that much I know
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.... जौंडिस कैन नॉट वेक्यूम इन द वर्ल्ड वर 2
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