Letter to the editor:
Organic farming does not contaminate soil and groundwater with pesticides and chemicals as conventional farming does. However, since organic farming is only about half as productive as conventional farming, it requires far more land to produce the same amount of food. Experts estimate that modern high-yield farming has saved 1.5 million square miles of wildlife habitat, and that if the world switched to organic farming, an additional 10 million square miles of forest would be needed to match current production rates. Therefore, organic farming is not necessarily better for the environment.
The passage opens with a statement about organic farming, one that presents a benefit of organic farming:
Organic farming does not contaminate soil and groundwater with pesticides and chemicals as conventional farming does.
That statement is followed by the contrast word "however," which introduces a contrasting fact about organic farming, one that involves a drawback of organic farming:
since organic farming is only about half as productive as conventional farming, it requires far more land to produce the same amount of food.
Then, the next statement expands on that contrasting statement providing more details about organic farming requiring more land:
Experts estimate that modern high-yield farming has saved 1.5 million square miles of wildlife habitat, and that if the world switched to organic farming, an additional 10 million square miles of forest would be needed to match current production rates.
Finally, the passage ends with the following main conclusion that's supported by the preceding two statements:
organic farming is not necessarily better for the environment
So, in summary, the passage opens with a statement that contrasts with everything else said and closes with a main conclusion that follows from statements that contrast with the first statement.
Which of the following most accurately describes the roles played by the portions in boldface in the reasoning of the letter to the editor?
This question is a Boldface question, and the correct answer will accurately describe the roles of the two boldfaced portions of the passage.
A. The first makes a concession to the view that the argument opposes; the second is a premise in the argument.
"A concession to the view that the argument opposes" means, basically, "information presented in the context of an argument that supports a conclusion that the argument opposes." So, we see that the first boldfaced portion is correct because it supports the conclusion that organic farming is better for the environment, which the argument presented by the passage basically opposes.
The second part of this choice is also correct because the second boldfaced portion is a premise that supports the main conclusion "organic farmion is not necessarily better for the environment." After all, the fact "since organic farming is only about half as productive as conventional farming, it requires far more land to produce the same amount of food," indicates that organic farming is not necesarily better for the environment.
So, both parts of this choice are correct.
Keep.
B. The first identifes a benefit of a course of action that the argument recommends; the second identifies a potential drawback.
This choice is tricky because it's partially correct. After all, the first boldfaced portion does identify a benefit of organic farming, and the second identifies a potential drawback of organic farming.
At the same time this choice has a failure point in that organic farming is not "a course of action that the argument recommends." Rather, the argument supports the conclusion that "organic farming is not necessarily better for the environment."
Eliminate.
C. The first presents the position the argument seeks to establish; the second presents a potential challenge to that position.
The first does not present a position the argument seeks to establish but, rather, presents a fact that the rest of the passage is in contrast to.
Also, the second does not challenge the first. In other words, it does not indicate that the first is not true. Rather, it says something that contrasts with the first without challenging the first.
Eliminate.
D. The first presents an argument in support of a position; the second identifies an assumption underlying that position.
The first boldfaced portion presents a fact that could be used to support the position that organic farming is better for the environment. So, while the first is not exaclty "an argument," we could potentially argue that the first part of this choice is correct.
At the same time, the second clearly is not an assumption supporting the position supported by the first, that organic farming is better for the environment. In fact, the second supports a contrasting position, that organic farming is not necessarily better for the environment.
Eliminate.
E. The first reports a conclusion of an argument that the letter writer opposes; the second presents new evidence that seems to contradict that conclusion.
Notice that the first boldface portion does not state a conclusion that the letter writer opposes. After all, the letter writer never says anything against "Organic farming does not contaminate soil and groundwater with pesticides and chemicals as conventional farming does." Rather, the author states as fact that organic farming does not contaminate soil and groundwater with pesticides and chemicals and then indicates that, even though that fact is true, organic farming is not necessarily better for the environment.
Accordingly, the second does not contradict the first, meaning it doesn't go against the first. Rather, it contrasts with the first and supports a conclusion that's true even though the first is true.
Eliminate.
Correct answer: A