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(See the complete passage discussion here: lsat/viewtopic.php?t=14217)
The correct answer choice is (B)
This choice requires a specific piece of information: the author’s explanation, presented beginning
on line 41, for why native species of plants grew better when growing naturally on nearby land then
when growing in plots enriched from soil nearby. Researchers, the author provides, concluded that
this was attributable to the fact that overfarmed lands are overrun with aggressive disease organisms
while lacking beneficial microorganisms.
Answer choice (A): The issue is not a lack in key nutrients, so this choice can be eliminated from
Answer choice (B): This is the correct answer choice. As discussed, the researchers concluded that
such land is usually overrun with aggressive disease organisms.
Answer choice (C): Overfertilization is not the issue that is presented to explain the results specified
in the question.
Answer choice (D): This clever choice was popular among test takers; overfarmed land is overrun
with disease and lacking beneficial microorganisms. The soil that was taken from the out-ofproduction
land may have had some such microorganisms, although the plots to which the soil was
taken may have been lacking.
Answer choice (E): The harmful organisms were concluded to be present in the overfarmed land, not
in the land that had been taken out of production.