1.
The purest form of carbon is
2.
Earth’s atmosphere traps solar radiation like a/an
3.
The gas present in natural gas is
4.
The following one dissolves due to acid rain and slowly crumble away
5.
The following one is a secondary fuel
6.
This is the process of purification of water by applying of pressure across a semi permeable membrane
7.
The major component of LPG is
10.
Which out of these is the cleanest fuel?
11.
Gas obtained from natural gas which is used in the production of urea
12.
Which of the following is the example of exhaustible natural resource
13.
The energy stored in the fossil fuel is
14.
Which one of the following is used in extraction of metals?
15.
What does N stand for in the full form of CNG
