Organic carbon is a measure of

A. Available C in soil

B. Available P in soil

C. Available K in soil

D. Available Mg in soil

Answer: Option A

Solution(By Examveda Team)

Total organic carbon is the measure of carbon found in an organic compound and is often used as a non-specific indicator of water quality and also the amount of organic carbon in the soil.
A typical analysis for total carbon measures both the total organic carbon present and the complementing total inorganic carbon.