Question

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Answer 1

Answer:

coal are of 4 types

peat coal: it contains less than 60% of carbon

lignite coal : contain s60% to 70% of coal

bituminous coal: it contains 70% to 90% of coal

antracite coal : pure form of coal contains 95% of coal

Answer 2

There are four types of coal, ordered from highest to lowest rank below.

1. Anthracite, or “hard coal,” contains the highest amount of carbon out of all coal ranks (86%-97%).
2. Bituminous coal, often called “soft coal,” has slightly lower carbon content than anthracite (76%-86%).
3. Sub-Bituminous coal (70%-76 %)
4. Lignite (65%-70%).

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