Organic matter + nutrients + O2 ‚Äö√Ñ√∂‚àö√∫‚àö‚â† CO2 + H2O + _______$

Organic matter + nutrients + O2 ‚Äö√Ñ√∂‚àö√∫‚àö

1.	Organic matter + nutrients + O₂ ‚Äö√Ñ√∂‚àö√∫‚àö‚â† CO₂ + H₂O + _______$
A.	Biomass
B.	O<sub>2</sub>
C.	Nutrients
D.	Organic matter
Answer» B. O<sub>2</sub>