Answer / guest

oxygen

Answer / ravi

we inhale whole air 70% N2 20% O2 etc.. to get pure oxygen.

Answer / abhi

We inhale all available gases irrespective of their type at
all times (night or day).

But, we utilize only oxygen as our blood passing through
lungs has the ability to transport oxygen to other body parts.

Answer / ravi

In CAM plant CO2 is also taken in might time

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