1.
Which of the following is not a fossil fuel ?
2.
Which one is called black gold?
3.
....................... is renewable source of energy.
4.
The slurry residue after obtaining biogas is used as
5.
Coke is Starting material for the preparation of
7.
The main constituent of natural gas is :
8.
_______________ contains 98% of carbon.
9.
Which of the following are the green house gas.
10.
Coal mines in our country are in :
