Science, asked by Bidyapb6160, 8 hours ago

Which thing is first black when bought red while used and grey after use

Answers

Answered by XxEVILxspiritxX
0

Answer:

it means - "Charcoal". Charcoal is a lightweight black substance that can be used as fuel. Charcoal is produced by heating of wood and other substances . While heating coal, it becomes red and after complete burning its ashes becomes grey which we throw away.

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