The manufacture of iron from iron ore involves the process of 

Some tips and related energy conversions are given below?
(i) Electrical Generator - Electrical from Mechanical
(ii) Electric motor - electro-to-mechanical
(iii) Diesel engine - electric from light
(iv) Solar cells - chemical to mechanical
Which of the above pairs is related to it?

The major component used in preparation of different types of glasses is :

A mixture of water and alcohol can be separated by 

The lactose is made , from . . . .

Which proteins is main constituent of milk?

Cadmium pollution is associated with ____?