Which one of the following is used for making glass?
Copper
Iron
Silica Sand
Sulphur
Which one of the following constitutes about 65% of the total electricity generated in India?
Solar energy
Wind energy
Hydroelectric power
Thermal power
Petroleum is referred to as 'black gold' because:
It is black in colour
It is yellow in colour
It has immense value
It is used in making jewellery
Where does mineral fuel find?
Sedimentary rocks
Metamorphic rocks
Igneous rocks
None of these
Cite is the name of one of the gold mines of India, which is one of the deepest mine of the world ?
Kolar
Jharia
Raniganj
Hatti
A hard,black and compact coal is:
Anthracite
Lignite
Bituminous
Sederite
Gold is an example of:
ferrous minerals
non- ferrous minerals
Both a and b
Non-metallic minerals
From which minerals does silicon obtain?
Coal
Bauxite
Thorium
Quartz
Which continent is the largest producer of iron?
Asia
Europe
North America
Australia
One fourth of the world's electricity is produced by:
Hydel power
Atomic energy
Tidal energy