CO2
Ozone
Oxygen
Haze
In an electric kettle water becomes hot by
In an ordinary dry cell, the electrolyte is
In arc welding, Argon is used as of its
In comparison to female, male has high color blindness, because.
In coriander, the useful parts are
In deep-sea diving, divers use a mixture of gases consisting of oxygen
In diesel engines, ignition takes place by
In Ecosystem the primary producer is
In electrical motor
In Extreme cold conditions in cold countries, water pipes gets busted
