by rinagoldfield Mon Oct 01, 2012 5:12 pm
Here's my solutions.
23. (D)
Question type: Inference
This inference question directs us to line 13, where the process of replacing topsoil is described. The author writes about this process as a solution to the problem that heavily fertilized land tends to support problem weeds such as thistles. We can infer that replacement topsoil is probably less heavily fertilized, and provides less support to problem weeds such as thistles.
(A) is tempting, since the reader can infer that fresh topsoil would not support thistles or other problem weeds. However, this answer choice goes to the extreme of suggesting that thistles cannot grow in this soil at all. This answer choice can be eliminated based on degree issues.
(B) is unsupported. While the author does refer to fungi in paragraph 3, she does not clearly connect this fungi (or a lack thereof) to the over-fertilized land described in paragraph 1.
(C) is unsupported. The passage offers no evidence to suggest how many or few seeds would be contained in fresh topsoil.
(D) Yes! Since the new soil is laid as a corrective to the problems caused by excessively fertilized soil, the reader can safely infer that this new soil would contain less fertilizer. This is the correct answer.
(E) is unsupported.