Coal
提供: 広島大学デジタル博物館
ナビゲーションに移動検索に移動coal
- 石炭(日本語)
- (Español)
Definition
Glossary of "Environmental Science: Earth as a Living Planet (2nd ed.)" by Botkin & Keller (1998)
- Solid, brittle carbonaceous rock that is by far the world's most abundant fossil fuel. It is classified according to energy content as well as carbon and sulfur content.