Question

1. in the process of coal formation, the first form of true coal is called ______.

○ bituminous coal
○ lignite
○ anthracite coal
○ peal

Explanation:

Peat is a precursor to coal, not true coal. Lignite is the first stage of true coal formation, followed by bituminous coal and then anthracite coal, which is the most mature form.

Answer:

C. lignite