MEDIUM
7th CBSE
IMPORTANT
Earn 100

Explain why exhaled air contains more carbon dioxide than inhaled air.

Important Questions on Respiration in Organisms
MEDIUM
7th CBSE
IMPORTANT
Explain why, exhaled air contains less oxygen than inhaled air?

MEDIUM
7th CBSE
IMPORTANT
Explain why exhaled air contains more water vapour than inhaled air.

MEDIUM
7th CBSE
IMPORTANT
Explain why, when we exhale air from our mouth on to a mirror, a patch of moisture is formed on the mirror surface?

EASY
7th CBSE
IMPORTANT
Why do all the organisms respire?

MEDIUM
7th CBSE
IMPORTANT
What is yeast? What type of respiration is carried out by yeast?

MEDIUM
7th CBSE
IMPORTANT
Why do mountaineers carry oxygen gas cylinders with them?

MEDIUM
7th CBSE
IMPORTANT
Why do we often sneeze when we inhale a lot of dust-laden air?

MEDIUM
7th CBSE
IMPORTANT
State the harmful effects of smoking.
