Your research involves studying o2 concentrations in the mixed layer. upon arriving at your hydrographic station, you observed that the mixed layer is 100 m deep and supersaturated by 5 mmol m-3. the water temperature is 20°c, the salinity is 35 psu, and the saturation water vapor pressure (i. e., humidity ) is 2.3 %. the gas transfer velocity (k+" daz) is cqual to 20 cm hr. (hint: refer to chapter 6 by libes) a. what was the normal atmospheric equilibrium concentration (naec) of o,? b. what is the concentration of oz in the mixed layer? c. calculate the air-sca flux of o2. (hint: make sure all quantities have the same units) d. is oz moving into or out of the water? explain. e. what is one possible reason that could explain why the o; was supersaturated?