Why school bell are made up of metals ?

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Solution

The purpose of school Bell is to remind people of timing. For this school bells are made of hard metals so that when it rings it can produce audible sound. On hearing that sound people can know about timings.

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Question 5

Give reasons:

(a) School bells are made up of metals.

(b) Electric wires are made up of copper.

Statement 1: School bells are made up of graphite.
Statement 2: Non-metals are not sonorous.

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