Ahealthy environment depends on biogeochemical cycles maintaining a balance of input and output. high levels of nitrogenous compounds in the waterways can cause an algal bloom. how does an algal bloom affect a marine ecosystem?

a.) it decreases the carbon dioxide in the water, creating a toxic environment.
b.) it decreases oxygen in the water, creating a toxic environment.
c.) it increases the carbon dioxide in the water, stimulating plant growth.
d.) it increases the oxygen in the water, stimulating plankton growth.

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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.

Is there any solid scientific evidence that humans have been cloned?