Gold is an example of:
ferrous minerals
non- ferrous minerals
Both a and b
Non-metallic minerals
Gold and Silver are found as ores in:
sedimentary rocks
clay rocks
igneous rocks
metamorphic rocks
Which one of the following is responsible for generating thermal power?
National Thermal Power Corporation
National Hydro-Electric Power Corporation
Bhabha Atomic Research Centre
Power Grid Corporation
The process of taking out mineral from rocks buried under the surface of the earth is named as:
mining
drilling
extracting
quarrying
Give an example of shafts:
Surface mining
Deep bores
Off - shore drilling
Space shafts
The energy of modern world is:
Hydro electricity
Thermal electricity
Atomic energy
Tidal energy
Where does mineral fuel find?
Sedimentary rocks
Metamorphic rocks
Igneous rocks
None of these
What is Geothermal Energy?
It is muscular energy
It is energy produced by human
It is the natural heat found in the interiors of the earth
It is solar energy
One fourth of the world's electricity is produced by:
Solar energy
Hydel power
The mixed minerals are known as :
salts
compounds
sands
ores
