4. We use metal to make bells, not any nonmetal: explain
5. Why are the fossil fuels consuming rapidly?
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Explanation:
Metals have the property of producing a ringing sound when struck. Therefore, metals are sonorous and have the property of "Sonority". Non-metals however, are not sonorous and hence are not used in bells.
Fossil fuels are being consumed rapidly due to the following reasons.They are non renewable, which means that the amount of fossil fuel resources will run out in the future. An increase in the world population and industrialization has increased the demand of fossil fuels.
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