Question

describe the conditions that lead to the formation of coal​

Answer 1

Answer:

High temperature and high pressure are required for the formation of coal. When dead vegetation got buried under the soil, they were compressed under the deposited soil. Carbon got trapped in them. High temperature and pressure then converts these dead vegetation to coal.

Explanation:

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Answer 2

Coal is a combustible black or brownish-black sedimentary rock, formed as rock strata called coal seams. ... Coal is formed when dead plant matter decays into peat and is converted into coal by the heat and pressure of deep burial over millions of years.

There are four stages in coal formation: peat, lignite, bituminous and anthracite. The stage depends upon the conditions to which the plant remains are subjected after they were buried – the greater the pressure and heat, the higher the rank of coal.