The raw material for aluminium.
Mica
Bauxite
Limestone
Coal
An accumulation of any mineral mixed with other element is described as:
Compund
Ore
Rock
None of these
A "nodal industry".
Copper
Gold
Petroleum
An environment friendly fuel.
Natural gas
A buried sunshine
Aluminium
The best variety of iron ore
Hematite
Magnetite
Limonite
Anthracite
Depending on carbon contents & amount of heat energy it can produce, coal is classified into
Two types
Three types
Six types
Five types
Minerals are needed to be conserved because
they are finite and non-renewable
they are finite and renewable
they are infinite but non-renewable
none of these
Orissa is the largest producer of ____________ ores in India.
Haematite
Manganese
The highest quality hard coal.
Lignite
Bituminous
