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Using broad-spectrum weed killers on weeds that are

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NandishSS Master | Next Rank: 500 Posts Default Avatar
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Using broad-spectrum weed killers on weeds that are

Post Mon Jun 20, 2016 11:59 pm
Which of the following most logically completes the argument below?

Using broad-spectrum weed killers on weeds that are competing with crops for sunlight, water, and nutrients presents a difficulty: how to keep the crop from being killed along with the weeds. For at least some food crops, specially treated seed that produces plants resistant to weed killers is under development. This resistance wears off as the plants mature. Therefore, the special seed treatment will be especially useful for plants that _____________ .

(A) produce their crop over an extended period of time, as summer squash does
(B) produce large seeds that are easy to treat individually, as corn and beans do
(C) provide, as they approach maturity, shade dense enough to keep weeds from growing
(D) are typically grown in large tracts devoted to a single crop
(E) are cultivated specifically for the seed they produce rather than for their leaves or roots

Experts please help me in solving this OG question!!

What is the best way to deal with these kind of question?

@lunarpower @GMATGuruNY @ceilidh.erickson

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Gmatasap Junior | Next Rank: 30 Posts Default Avatar
Joined
04 Apr 2016
Posted:
19 messages
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Post Wed Jun 22, 2016 9:54 pm
I am NOt an expert, but let me share what I know,

We have weed plants and we have crops.
both struggle for sun light, water, and nutrients.

For some crops, specially treated seed that produces plants resistant to weed killers is under development.
BUT, we have a problem,
"This resistance wears off as the plants mature"
This treatment can be used for

PLANTS THAT DO NOT NEED TO COMPETE WITH THE WEEDS AS THEY MATURE.

A-Produce their crops over extended peroid of time, so the struggle would continue till they produce the crops- so the resistance wearing off- sould not help.

B- Produce large seeds - Irrelevent

C- provide, as they approach maturity, shade dense enough to keep weeds from growing
once they grow, no competition with weed. so our solution here.

D- are typically grown in large tracts devoted to a single crop - Irrelevent

E- are cultivated specifically for the seed they produce rather than for their leaves or roots- the plants need to compete with weed for life, not our answer.

hence solution C
Hope it helps

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