Understanding Inhaled and Exhaled Air

What happens to the chest when air is inhaled?

• Moves downward

• Moves upward

• Expands sideways

• Contracts inward

Which gas is present in a higher amount in exhaled air compared to inhaled air?

• Oxygen

• Carbon dioxide

• Nitrogen

• Water vapor

Besides oxygen and carbon dioxide, what else is present in the air we breathe?

• Hydrogen and helium

• Nitrogen and water vapor

• Carbon monoxide and methane

• Only oxygen and carbon dioxide

During exhalation, the chest moves in which direction?

• Upwards

• Sideways

• Downwards

• Remains the same

Which statement is true about inhaled air?

• Inhaled air contains more carbon dioxide than exhaled air.

• Inhaled air contains more oxygen than exhaled air.

• Inhaled air contains only oxygen and nitrogen.

• Inhaled air contains more water vapor than exhaled air.

What is the main difference between inhaled and exhaled air?

• Inhaled air has more carbon dioxide than exhaled air

• Exhaled air has more oxygen than inhaled air

• Inhaled air has more oxygen and less carbon dioxide

• Exhaled air has more nitrogen than inhaled air