How does the volume of water that can be harvested from campus
rooftops (question ??c) compare to the mean annual well production
in the subsidence zone (question ??)? Write your answer in terms of
a percentage of annual well production. (Hint: Divide the answer to
question ??c by the answer to question ?? and multiply the result by ???.) What will be an ideal response?
(8,580,000 gal รท 13,610,937,600 gal) x 100 = 0.063%
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Health problems associated with indoor air pollution in developing countries is most commonly associated with
A) chlorine gas released from tap water. B) carbon monoxide generated by the use of biofuels for cooking and heating. C) poor hygiene and sanitation inside the home. D) the widespread use of pesticides to control disease vectors.
Compare and contrast photosynthesis and chemosynthesis. Fill in the blank(s) with the appropriate word(s)
People with home septic systems often flush several cups of a powdered substance down their toilets every month or two to keep their systems healthy. These powdered substances most likely contain
A) bacteria and enzymes that help break down wastes. B) chlorine and other disinfectants that help to prevent soil contamination. C) chemicals that bind to heavy metals to keep them from leaching into the soil. D) acids that help to clean the insides of the walls of the pipes and septic tank.
Which of the following will most directly result in an increase in the amount of cholesterol synthesized in the liver?
A) the cholesterol level inside cells B) the cholesterol level in blood serum C) the ratio of HDL to LDL D) all of these are equally important