The variety of coal in which the deposit contains recognizable traces of the original plant material is
A). Bitumen
B). Lignite
C). Lignite
D). Peat
1. White phosphorus is always kept under
2. An example of replenshible energy source is
3. Chlorophyll is a naturally occurring chelate compound in which central metal is
5. Rusting of iron takes place due to
6. Aluminum can be purified by
8. Energy of Ultraviolet rays is great than