Physics, asked by RanjithDevara, 6 months ago

explain nortons therom​

Answers

Answered by aditi662216
2

Explanation:

Based on maceral content and its appearance in a hand specimen, coal is classified into four principal types: clarain, durain, fusain, and vitrain. Coal may also be classified in grades using subjective terms (e.g., “low-sulfur coal,” “high-ash coal”) with reference to their impurities for commercial purposes.

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