What is the full form of $CO$?

An organic compound present in a living cell in a very small amount can be identified and separated by:

Which of the following are included in inorganic compounds?

Elemental analysis gives elemental composition of living tissues in the form of $P$,while analysis of chemical compounds gives an idea of $Q$ present in living tissues.

What do living organisms obtain from the environment to synthesize the essential components required for their bodies?

Inorganic compounds are found in $..........$.