knewton prep 1 Cr spear thistle

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knewton prep 1 Cr spear thistle

by pradeepkaushal9518 » Thu Aug 26, 2010 2:06 am
A certain variety of spear thistle, a weed that quickly spreads across grasslands, was inadvertently introduced into Canada from the United Kingdom in the late 1960's. This weed takes nutrients and moisture from the soil that would otherwise go to timothy grass, the most common Canadian grass varietal. To help track the spread of spear thistle, the Canadian government has released a fact sheet to farmers to help them identify the weed-the fact sheets contain pictures of the weed and explain its effect on soil; the sheets also ask farmers to report any outgrowths of the weed found on their land.

Which of the following, if true, would provide the most support for the prediction that the agencies' action will have its intended effect?


(A) The spear thistle is one of several foreign weed species that draws nutrients from the soil of Canadian farmers.

(B) The animals that graze on timothy grass on Canadian farms are uninterested in eating spear thistle because of its thorns.

(C) The spear thistle leaves spiny thorns on the ground which can poke holes in timothy grass.

(D) Spear thistles usually draw nutrients out of the soil at night, but timothy grass usually grows during the daytime hours.

(E) Most Canadian farmers use timothy grass as the main varietal with which to feed and nourish their livestock.
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by sirisha.g » Thu Aug 26, 2010 2:30 am
IMO E

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by Maciek » Thu Aug 26, 2010 2:51 am
Hi!

what is OA?
To help track the spread of spear thistle, the Canadian government has released a fact sheet to farmers to help them identify the weed-the fact sheets contain pictures of the weed and explain its effect on soil; the sheets also ask farmers to report any outgrowths of the weed found on their land.
What is the intended effect of agencies' action? To help track the spread of spear thistle

IMO B

if the animals that graze on timothy grass on Canadian farms are uninterested in eating spear thistle because of its thorns, any outgrowths of the weed found on their land are easily recognizable.

Hope it helps!

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by reply2spg » Thu Aug 26, 2010 4:13 am
E is correct here. I will explain once I reach office.
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by pradeepkaushal9518 » Thu Aug 26, 2010 9:31 pm
hi reply 2 spg reach office soon and explain why E seems correct to u
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by ankurmit » Thu Aug 26, 2010 10:27 pm
I found answer as E only by elimination strategy

I am not sure about E.

Can anyone explain
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by FightWithGMAT » Thu Aug 26, 2010 11:23 pm
pradeepkaushal9518 wrote:A certain variety of spear thistle, a weed that quickly spreads across grasslands, was inadvertently introduced into Canada from the United Kingdom in the late 1960's. This weed takes nutrients and moisture from the soil that would otherwise go to timothy grass, the most common Canadian grass varietal. To help track the spread of spear thistle, the Canadian government has released a fact sheet to farmers to help them identify the weed-the fact sheets contain pictures of the weed and explain its effect on soil; the sheets also ask farmers to report any outgrowths of the weed found on their land.

Which of the following, if true, would provide the most support for the prediction that the agencies' action will have its intended effect?


(A) The spear thistle is one of several foreign weed species that draws nutrients from the soil of Canadian farmers.

(B) The animals that graze on timothy grass on Canadian farms are uninterested in eating spear thistle because of its thorns.

(C) The spear thistle leaves spiny thorns on the ground which can poke holes in timothy grass.

(D) Spear thistles usually draw nutrients out of the soil at night, but timothy grass usually grows during the daytime hours.

(E) Most Canadian farmers use timothy grass as the main varietal with which to feed and nourish their livestock.

Has to be between B and E.

IMO B.

Plan is completely based on the identification of Spear and Timothy.
Any answer that tell that there is different between the two would be good.

E does not give any indication that whether farmers would be in position to differentiate between Spear and timothy.

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by pradeepkaushal9518 » Fri Aug 27, 2010 12:06 am
ankur mittal can u elaborate your elimination method
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by reply2spg » Fri Aug 27, 2010 3:43 am
Oops!!! I am a bad guy, sorry was not able to explain y'day. Got stuck in meeting. Today pakkka!!!
pradeepkaushal9518 wrote:hi reply 2 spg reach office soon and explain why E seems correct to u
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by gmatmachoman » Fri Aug 27, 2010 3:57 am
I am not sure if E will be the answer..IMO D

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by pradeepkaushal9518 » Fri Aug 27, 2010 4:24 am
no govi think again
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by reply2spg » Fri Aug 27, 2010 4:37 am
How the plan will succeed? If farmer notify govt abt the ST. How farmer will come to know abt ST? Flashcards provided by govt and if farmer is using TG for some purpose and the supply of TG reduced.

Let's go to individual options.

A. This is doing nothing to the conclusion of the passage. Eliminate.
B. If TG is not available and animals are not interested in ST, then they will find out something else to survive. It will not be the case that animal will eat nothing. Eliminate
C. If ST pokes an hole then also TG is available and it's supply is not reduced. So farmer will not report in this case. Eliminate
D. We or farmer do not care the time when ST derives the nutritions. Eliminate
E. Aha!!!! Farmers use TG for their livestocks. Now TG is reduced, farmers need to know why? Farmers will ultimately find out that ST is causing reduction in TG. They have the govt flash cards with them. Using which they will be sure that ST is behind all this. They will report the ST to govt, and govt plan will succeed.

Hope this helps!!!
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by pradeepkaushal9518 » Fri Aug 27, 2010 4:46 am
great!!!!!!!!
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by reply2spg » Fri Aug 27, 2010 4:55 am
So is OA E? Which option you were confused over?
pradeepkaushal9518 wrote:great!!!!!!!!
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by pradeepkaushal9518 » Fri Aug 27, 2010 4:57 am
great!!!!!!!!
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