_______ is a hard, black colored rock-like substance.
Coal
Petrol
Natural Gas
None of these
The main product obtained by the destructive distillation of coal are __________
coke
coal gas
both a and b
none of these
Natural gas provides _________ percent of the energy requirements.
87
28
36
23
Which one is the fossil fuel ?
Natural gas
Petroleum
all of these
_________ is the preserved remains of dead organisms from past geological ages.
Alternative energy
Fossil
Coal provides ________ percent of the energy requirements.
_________ is the fossil record of the whole forests
LPG
Coke
The pressurised natural gas is called __________
CNG
none
LPG mainly consists of __________
ethane
butane
propane
methane
________ is not a fossil fuel.
Wood
