Question

characteristics of sound only 5 ​

Answer 1

Answer:

Some main points of Characteristics of sound

• Sound are invisible
• Sound can be only heard
• Sound make melodious
• Sound passes from place to place
• Sound can come from anywhere, anytime

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Answer 2

Explanation:

X=5

Y=6

this is the answer

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a combination reaction is one in which 2 product combina hope it helps