Explanation for Question 47 From the Reading Section on the 2019 March Sat
All right. Question number 47 is another word in context 2 situation. This time we're looking at the word drive in line 59. 3 So as usual, we'll go up and see the context of how drive is 4 being used in the sentence. Here's line 59. 5 The author says that, 6 um, the scientist and his colleagues calculate that the original water content of 7 the moon's magma may has been as high as seven 50 parts per million, 8 a lot of water comparable to many volcanic rocks on earth, 9 and more than enough to drive surface volcanism that would have dispersed 10 magma and explosive eruptions billions of years ago. 11 So drive here is used in the sense of causing or 12 triggering, initiating something in that vein. 13 So let's take a look at our answer choices, uh, 14 answer choice. I coerce it wouldn't necessarily make sense to coerce 15 this geological process. 16 Um, so a is out B fuel is perhaps a better fit. 17 Um, it's used to initiate to trigger to start. 18 So, um, be as a really strong fit, 19 uh, see transport again, maybe a good synonym out of context, 20 but in this case, doesn't really apply to the author's meaning, 21 uh, and answer choice D maneuver again, 22 a similar logic as C doesn't really fit within this particular context. 23 So choice B is best. Um, and we can substitute that right back in, 24 in line 59, more than enough to fuel 25 surface vulcanism that would have disbursed magma and explosive eruptions. 26 So this fits in context, 27 we can safely choose answer choice B for question number 47.