Answer:
labile DOM is utilized rapidly while refractory DOM is utilized very slowly
Step-by-step explanation:
Based on timescale:
labile DOM is utilized on hours to weeks. While, refractory DOM is utilized on centuries to millennia.
Based on molecular weight,
labile DOM has low molecular weight while refractory DOM has high molecular weight
Based on solubility,
labile DOM has high solubility compared to refractory DOM with low solubility
Based in structure,
labile DOM is non structural while refractory DOM it's largely structural