Question

list the different uses of various gases present in the atmosphere.
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Answer 1

Answer:

Oxygen (O2): medical use, welding

Nitrogen (N2): fire suppression, provides an inert atmosphere

Helium (He): balloons, medical equipment  

Argon (Ar): welding, provides an inert atmosphere for materials

Carbon dioxide (CO2): carbonated soft drinks

Acetylene (C2H2): welding  

Propane (C3H8): fuel for heat, gas grills

Butane (C4H10): fuel for lighters and torches

Nitrous oxide (N2O): propellant for whipped topping, anesthesia  

Freon (various chlorofluorocarbons): coolant for air conditioners, refrigerators, freezers

Explanation:

Answer 2

Answer:

Oxygen (O2): medical use, welding.

Nitrogen (N2): fire suppression, provides an inert atmosphere.

Helium (He): balloons, medical equipment.

Argon (Ar): welding, provides an inert atmosphere for materials.

Carbon dioxide (CO2): carbonated soft drinks.

Acetylene (C2H2): welding.

Propane (C3H8): fuel for heat, gas grills

Butane (C4H10): fuel for lighters and torches

Nitrous oxide (N2O): propellant for whipped topping, anesthesia

Freon (various chlorofluorocarbons): coolant for air conditioners, refrigerators, freezers