Question

what is brown coal ?​

Answer 1

Answer:

Lignite, often referred to as brown coal, is a soft, brown, combustible, sedimentary rock formed from naturally compressed peat. It has a carbon content around 25 to 35 percent, and is considered the lowest rank of coal due to its relatively low heat content.

Answer 2

Explanation ;

Lignite, often referred to as brown coal, is a soft, brown, combustible, sedimentary rock formed from naturally compressed peat. It has a carbon content around 25 to 35 percent, and is considered the lowest rank of coal due to its relatively low heat content.