Question

what happens when substances like milk, sugar, wool, dry leaves, hair and seeds are heated strongly in hard glass test tube​

Answer 1

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When milk, sugar, wool, dry leaves, hair and seeds are heated strongly in hard glass test tube, they get charred and a black substance is left behind. This black substance is carbon.

Answer 2

Answer:

When milk, sugar, wool, dry leaves, hair and seeds are heated strongly in hard glass test tube, they get charred and a black substance is left behind. This black substance is carbon.