What percentage of dry weight of living organisms does the carbon constitute?
Answer & explanation
Correct answer: option 4
When you study the composition of living organisms, carbon constitutes
49 per cent of dry weight of organisms and is next only to water. If we
look at the total quantity of global carbon, we find that 71 per cent carbon
is found dissolved in oceans. This oceanic reservoir regulates the amount
of carbon dioxide in the atmosphere.