by agutman Tue Dec 10, 2013 4:49 pm
Here's my explanation!
Question Type: Identification (56-57)
This question requires that we simply identify supporting text in the passage. If we understand the structure of the passage, the language in the question, "abrasion of CM pit walls," should lead us to lines 28, 41, and 56.
Answer choice (A) is correct, because Speke showed that (a minority of) unabraded CM seeds germinate.
(B) actually, "many of the pits were destroyed" (lines 40-41).
(C) is not supported in the text.
(D) is not supported in the text.
(E) is a trap for people who focus on lines 60-62; but those lines are not about the abrasion of CM pit walls!