pls give all answer.
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Answered by
1
Answer:
1)air
2) a
3) d
4) b
Explanation:
i hope it helps u
Answered by
1
- To and fro motion of an object: Vibration
- Sound is produced by: Vibrating objects only
- Correct Option regarding good fuel: Ignition temperature above room temperature
- The natural solid fuel is: Charcoal
- Combustion of object releases: Heat and light
- Hottest Zone of candle: Blue zone
- Sound Travels the fastest in: Water
- The audible range of frequency: 20-20000Hz
- Which voice is likely to have less frequency: Women
- which characteristic of sound depends on the amplitude of vibration: Loudness
This is for the mcq ones
Ask for others separately i will answer them
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