Find the correct statement

Options

A. 1)Low temperature and aerobic conditions inhibit decomposition
B. 2)Plants capture only 2 - 10% of the PAR and sustain the entire living world
C. 3)In aquatic and terrestrial ecosystems the GFC is the major condult for energy flow
D. 4)Measurement of biomass in terms of fresh weight is more accurate than dry weight

Answer

B

Explanation

(a) Low temperature and anaerobiosis inhibit decomposition. Decomposition is mainly an aerobic process. (c ) In aquatic ecosystem GFC is the major conduit for energy flow. As against this in a terrestrial ecosystem a much larger fraction of energy flows through the DFC. (d) Dry weight is more accurate.