Gases

Which gas is used to make fizzy drink

• Nitrogen

• Oxygen

• Carbon dioxide

• Helium

Which gas is used as fertilizer?

• Argon

• Helium

• Nitrogen

• Oxygen

Which gas is used in balloons?

• Helium

• Argon

• Neon

• Krypton

Which gas is used in advertisements?

• Sulphurdioxide

• Neon

• Helium

• Oxygen

Living things use oxygen for the process of

• Respiration

• Hearing

• Digestion

• Walking

Which gas does not support burning?

• Oxygen

• Hydrogen

• Carbon dioxide

• Nitrogen

Carbon dioxide is used by the plants for

• Osmosis

• Diffusion

• Photosynthesis

• Transpiration

Which gas supports burning?

• Helium

• Argon

• Neon

• Oxygen

Which gas is used in laser light?

• Argon

• Helium

• Carbon dioxide

• Sulphur dioxide

The percentage composition of oxygen in air is

• 20%

• 21%

• 22%

• 23%