answersLogoWhite

0


Best Answer

Coal is formed by the burial and heating of large quantities of organic matter.

Brown coal is a low-grade form of coal, formed by moderate burial and pressure.

Black coal is formed by increasing pressure and temperature, removing more of the volatiles and resulting in a more carbon-rich coal.

User Avatar

Wiki User

โˆ™ 2010-04-28 06:48:18
This answer is:
User Avatar
Study guides

Add your answer:

Earn +20 pts
Q: How is black and brown coal produced?
Write your answer...
Submit
Still have questions?
magnify glass
imp
People also asked