Geosmin is produced by bacteria, and because humans can detect its odor and taste at extremely low concentrations, it can be an undesirable contaminant of drinking water. Various treatment options can degrade geosmin, including a process called photocatalytic degradation, in which water is irradiated with UV light in the presence of TiO2. (Water SA [online] 2012, 38, No. 5.) Shown below are some of the compounds produced upon the photocatalytic degradation of geosmin. How would you use 1H NMR spectroscopy to distinguish between the given compounds?

For the strategies below, decide whether they are best described as demand-side solutions or supply-side solutions to meeting human needs for fresh water. remember that a demand-side solution reduces demand for fresh water, whereas a supply-side solution increases the supply of fresh water. (a) damming a river to create a reservoir (b) desalinating seawater (c) a nation invading a neighboring country to access their rivers (d) raising water prices for consumers and businesses (e) providing tax breaks for companies that use less water (f) replacing inefficient irrigation with more-efficient drip irrigation to grow crops (g) requiring low-flow showerheads in all new homes