Give a geographic reason for the following:
Many port cities have their own oil refineries.
Copper is used to make electric wires.
Give four economic uses of mineral resources.
Mention two reasons why minerals are important?
Which state is the largest producer of mineral oil?
Name any two industrial products for which limestone is used as a source of raw material.
What is lignite? Name the two areas where lignite is found in India.
Mention two uses of mineral oil.