The membrane-filtration method of desalination
A. works best on water with low concentrations of dissolved impurities.
B. is prohibitively expensive; it would increase the cost of water beyond the reach of most homeowners.
C. is efficient but extremely slow compared to other methods.
D. All of the choices are correct.
Answer: A
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Indicate whether this statement is true or false.
Explain how eating fish or poultry leads to more sustainable agriculture.
What will be an ideal response?
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A) ceases completely B) forms large circular orbits C) becomes a back-and-forth motion near the bottom D) becomes an up-and-down motion near the bottom
Which of these best describes the reason most high pressure systems bring clear skies?
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