Human breathing process

Inhaled air contains more__________________ compared to exhaled air.

• carbon monoxide

• oxygen

• carbon dioxide

• water vapour

Exhaled air contains more ______________ compared to inhaled air.

• oxygen

• fragrant

• water vapour

• carbon dioxide

Choose the organs involved in breathing process

• trachea

• nose

• lungs

• eyes

During inhaled, air passing through _____________ , _____________, ________________ .

• trachea, lungs, nose

• lungs, nose, trachea

• nose, trachea, lungs

• nose, lungs, trachea

During breathing process, _______________ carried into the lungs, at the same time ________________ carried out of the lungs.

• oxygen, carbon dioxide

• carbon dioxide, oxygen

• my mom's fragrant, water vapour

• nitrogen, oxygen

During _______________, air is taken into the lungs.

• exhalation

• breathing

• inhalation

• inhalation and exhalation

During _________________, air is expelled from the lungs.

• breathing

• exhalation and inhalation

• inhalation

• exhalation

Human need ...................................... to live.

• carbon dioxide

• carbon monoxide

• oxygen

• water vapour

During breathing process, oxygen are............................ the lungs, at the same time carbon dioxide are carried out of the lungs.

• carried into

• carried out

• just passing

• flying to

During inhalation, air from nose will passing through ............................. before reach to the lungs.

• mouth

• trachea

• nose

• lungs