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Chapter 23: Sound Waves - Science Mcqs for Grade 7
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Chapter 23: Sound Waves - Science Mcqs for Grade 7
>> Measure of decibel starts from
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Q. Measure of decibel starts from
a.
0
b.
20
c.
20000
d.
10
ANSWER: 0
Answer & Explanation
No explanation is available for this question!
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