18.2k views
3 votes
Which of the following types of coal requires the most intense pressure in order to form?

Select one:
a. anthracite
b. bituminous
c. lignite
d. peat

1 Answer

3 votes
A.

This is the highest grade of coal and requires the greatest amount of pressure and time for formation.
User Tania Chistyakova
by
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