Gahlin, Kate Larson, lauren-3rd hr
2. Giant plants died in swamps over millions of years, they were buried under dirt and water. All of that compressed the materials and formed coal.
3. It is mainly used for heat and electricity.
4. The U.S.A produces about one billion tons of coal annually.
5. May soon be used for communications and transportation.
*train using coal to move. Picture on right.
this is what coal looks like. this is also what it looks like when it is mined.
this shows what percent of coal is being used in the u.s along with other fossil fuels.
how coal is formed
this is a example of how coal is formed. starts with plants dying, then it is covered in dirt and water, eventually it will be compressed under dirt and rocks.