Urgent! i need

i think it's a and b but i'm not sure.

which describes how photosynthesis differs from aerobic respiration?

(select all that apply.)

a. all of the reactions of photosynthesis occur inside the chloroplast, while only some of the reactions of aerobic respiration occur inside the mitochondria.

b. photosynthesis produces oxygen, while aerobic respiration consumes oxygen.

c. the general equation of photosynthesis is the reverse of that for aerobic respiration.

d. photosynthesis produces carbon dioxide gas, while aerobic respiration consumes carbon dioxide gas.

Where does all the water go? according to the environmental protection agency (epa), in a typical wetland environment, 39% of the water is outflow; 46% is seepage; 7% evaporates; and 8% remains as water volume in the ecosystem (reference: united states environmental protection agency case studies report 832-r-93-005). chloride compounds as residuals from residential areas are a problem for wetlands. suppose that in a particular wetland environment the following concentrations (mg/l) of chloride compounds were found: outflow, 60.4; seepage, 73.7; remaining due to evaporation, 26.4; in the water volume, 46.8. (a) compute the weighted average of chlorine compound concentration (mg/l) for this ecological system. (round your answer to one decimal place.) mg/l (b) suppose the epa has established an average chlorine compound concentration target of no more than 58 mg/l. does this wetlands system meet the target standard for chlorine compound concentration? yes. the average chlorine compound concentration (mg/l) is too high. yes. the average chlorine compound concentration (mg/l) is lower than the target. no. the average chlorine compound concentration (mg/l) is lower than the target. no. the average chlorine compound concentration (mg/l) is too high.