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CO
CO2
Hydrocarbons
NO
Major gaseous pollutant of the thermal power station is
Man dies in the atmosphere of CO, because it
Many marine animals use _ dissolved in sea-water to make their shells.
Many microbes can effect the chemical process of
Mark the compound which possesses ionic, covalent & coordinatebonds.
Marsh gas mainly contains
Mass of electron is
Methane contributes towards global warming so it is called a _ gas.
Misch metal is widely used in manufacture of which of the following
Mixture of which one of the following pairs of gases is the cause of occurrence of most of the explosions in mines?