Coal (Formation, Types and Importance)
What is coal? Coal is a solid, black, readily combustible fossil fuel found as thick layers in deep mines under the surface of the earth. […]
Month: December 2022
Fossils (Formation, Types and Importance)
What are fossils? The term fossil comes from the Latin word fossilis, which literally means ‘dug up’. Fossils are the remnants, impressions, or traces of […]