Question
Which gas is used by living organisms for respiration? Where do they get it from? [2 MARKS]
Answer: Option A
:
Was this answer helpful ?
:
Name of the gas : 1 Mark
Source : 1 Mark
Living organisms require oxygen for respiration.
They get oxygen from the atmosphere. The envelope of air around us is called atmosphere and 20% of it is oxygen.
Was this answer helpful ?
More Questions on This Topic :
Latest Videos
Latest Test Papers
Submit Solution