Lignite coal:
A) is the most common grade of coal
B) causes the least amount of air pollution of any type of coal
C) is very soft and has a relatively low heat value
D) is very hard and burns cleanly
E) has the lowest sulfur content of any type of coal

Question

Quizplus · Accepted Answer

Lignite coal is known for its softness and relatively low heat value. It is a lower grade of coal and is often used for electricity generation in power plants. It is not known for its low sulfur content or clean burning properties.

Lignite Coal