________ is the process of dissolving and replacement of the original minerals in an object with other minerals.
Fossil fuel
Fossilisation
Exhaustible resources
None of these
_________ is the preserved remains of dead organisms from past geological ages.
Alternative energy
Fossil
Natural gas
Crude oil is formed from tiny sea creatures called _________.
Bacteria
Fungi
Diatoms
Virus
Which one is soft coal ?
peat
lignite
bituminous
Anthracite
LPG is stored and supplied in ____________
pipe lines
tube
gas cylinders
none
The pressurised natural gas is called __________
LPG
CNG
both a and b
________ is not a fossil fuel.
Petroleum
Coal
Wood
Burning of fossil fuels results in the formation of ________
Carbon dioxide gas
Oxygen gas
Oil
_______ coal has the least carbon content.
Lignite
Bituminous
Petroleum provides ___________ percent of the energy requirements.
87
28
36
23