How coal is formed
Coal is a natural resource millions of years in the making. Since over 40 percent of the world's electricity comes from burning coal, it remains an important, though sometimes controversial, energy source. The processes that transform organic remains into coal, coal mines, and the carbon cycle...
| Main Author: | |
|---|---|
| Format: | EBOOK |
| Language: | ENGLISH |
| Published: |
Gareth Stevens Publishing LLLP
2017
|
| Series: | From the Earth, how resources are made |
| Subjects: |