Explanation for Question 49 From the Reading Section on the 2019 March Sat
Question number 49, we are looking at evidence for the answer 2 to our previous question. Number 48, 48 is referring 3 to, um, the author's conclusions about any water currently present 4 on the moon. So as we go through our answer choices here for question 5 49, we'll want to pay attention to which best speaks to any 6 water currently present on the moon. So let's take a look at answer choice 7 a to start out, answer choice a is lines 36 to 41 8 using an eye on micro micro probe. 9 Um, the team has revisited the colorful glass it's collected 10 during lunar missions in the late 1960s and early 1970s. 11 This doesn't speak too much about the author's conclusions, 12 just introducing a new study that the author believes is relevant 13 to their discussion. So for that reason, 14 a is out answer choice B as lines 53 to 57. 15 However, based on the deep, 16 significant amount of remaining water deep inside the beads, 17 the finding was that the original water content of the moon's magma may 18 have been as high as 750 parts per million. 19 Um, while that's definitely an important statistic and a key finding of this study 20 that the author mentions. Again, 21 this isn't a major finding that the author has or a major conclusion about 22 what any water currently present on the moon might be 23 like. So we can eliminate B as well. 24 Answer choice C is line 62 to 64. 25 If that much water powered volcanoes in the moon's past, 26 then a great deal of water must still be locked somewh...