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Researchers have studied the cost-effectiveness of growing halophytes—

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Researchers have studied the cost-effectiveness of growing halophytes—  [#permalink]

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New post 10 Feb 2019, 12:48
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Researchers have studied the cost-effectiveness of growing halophytes—salt-tolerant plant species—for animal forage. Halophytes require more water than conventional crops, but can be irrigated with seawater, and pumping seawater into farms near sea level is much cheaper than pumping freshwater from deep wells. Thus, seawater agriculture near sea level should be cost-effective in desert regions although its yields are smaller than traditional, freshwater agriculture.

Which one of the following, if true, most strengthens the argument above?
(A) A given volume of halophytes is significantly different in nutritional value for animal forage from the same volume of conventional forage crops.
(B) Some halophytes not only tolerate seawater but require salt in order to thrive.
(C) Large research expenditures are needed to develop the strains of halophytes best suited for agricultural purposes.
(D) Costs other than the costs of irrigation are different for halophytes grown by means of seawater irrigation than for conventional crops.
(E) Pumping water for irrigation is proportionally one of the largest costs involved in growing, harvesting, and distributing any forage crop for animals.

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Researchers have studied the cost-effectiveness of growing halophytes—  [#permalink]

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New post 10 Feb 2019, 17:52
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patto wrote:
Researchers have studied the cost-effectiveness of growing halophytes—salt-tolerant plant species—for animal forage. Halophytes require more water than conventional crops, but can be irrigated with seawater, and pumping seawater into farms near sea level is much cheaper than pumping freshwater from deep wells. Thus, seawater agriculture near sea level should be cost-effective in desert regions although its yields are smaller than traditional, freshwater agriculture.

Which one of the following, if true, most strengthens the argument above?

--Looking for something that convinces me that these saltwater plants are a better idea than Freshwater plants.

Quote:
(A) A given volume of halophytes is significantly different in nutritional value for animal forage from the same volume of conventional forage crops.
"Different". We don't know better or worse. Can't take chances.

Quote:
(B) Some halophytes not only tolerate seawater but require salt in order to thrive.
Okay. Thanks for letting me know but how does this help me decide if these are better than freshwater plants? Not falling for it.

Quote:
(C) Large research expenditures are needed to develop the strains of halophytes best suited for agricultural purposes.
This seems to be weakening the conclusion. Not good. Moving on.

Quote:
(D) Costs other than the costs of irrigation are different for halophytes grown by means of seawater irrigation than for conventional crops.
Again "different". No idea if the cost is less or higher than conventional crops. Wrong.

Quote:
(E) Pumping water for irrigation is proportionally one of the largest costs involved in growing, harvesting, and distributing any forage crop for animals.
Bingo! Stimulus told me that pumping seawater is cheaper than freshwater. This options says water is one of the biggest expenses. This means if I use saltwater, I can feed my animals at a much cheaper cost. ANSWER!
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Researchers have studied the cost-effectiveness of growing halophytes—   [#permalink] 10 Feb 2019, 17:52
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Researchers have studied the cost-effectiveness of growing halophytes—

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