1. By: Sejal Patel

2.  Fossil fuel consisting of carbonized vegetable matter.

3.  Sub bituminous  Bituminous coal

4.  Coal has a higher heating value than lignite.  Sub bituminous coal typically contains 35-45 percent carbon, compared to 25-35 percent for lignite.  Most sub bituminous coal in the U.S. is at least 100 million years old.  About 44 percent of the coal produced in the United States is sub bituminous.  Wyoming is the leading source of sub bituminous coal.

5.  Contains 45-86 percent carbon, and has two to three times the heating value of lignite.  Bituminous coal was formed under high heat and pressure.  Bituminous coal in the United States is between 100 to 300 million years old.  It is the most abundant rank of coal found in the United States, accounting for about half of U.S. coal production.  Bituminous coal is used to generate electricity and is an important fuel and raw material for the steel and iron industries.  West Virginia, Kentucky, and Pennsylvania are the largest producers of bituminous coal.

6.  About 92 percent of the coal used in the United States, is for generating electricity.  ELECTRIC POWER  INDUSTRY  MAKING STEEL  EXPORT(Sand it to other countries )