Question

I am black when you buy me red when you use me and grey when you throw me away?​

Answer 1

Answer:

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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.

Answer 2

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.

Explanation:

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