Question

Occurrence of Carbon please define it briefly​

Answer 1

Answer:

It is present in very small amount (0.02%) of the earth's crust. It ranks 17th in the order of abundance in earth's crust. In nature, carbon occurs in free state as well as in combined state. In free state it is found as coal, diamond, graphite and fullerenes.

Explanation:

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Answer 2

Carbon occurs naturally as anthracite (a type of coal), graphite, and diamond. More readily available historically was soot or charcoal. Ultimately these various materials were recognized as forms of the same element.