Explanation for Question 21 From the Reading Section on the 2019 May Sat
Question 21 says, according to the data presented in the figure, 2 water demand in Bogota is best described as doing what? 3 So in this case, since the question starts off with, 4 according to the data in the figure, 5 we know that we only have to look at the figure here to determine 6 what the correct answer is. So we can just go through each answer choice 7 and see if we can confirm it based on the figure. So we'll start 8 with a, it says that the water demand dropped considerably from 1999 9 to 2002. So if we look back up here, 10 we can identify these points on the graph. So this one's 1999, 11 and this one is 2002 here, 12 or excuse me, that's incorrect. 13 So this one is 1999 and then this one is 2002. 14 So in this case you can see there really isn't any decrease at all. 15 They're more even with each other more or less. 16 So answer choice a would be incorrect here. 17 If we look at answer choice B, it says that the water demand rose 18 dramatically from 2000 to 2001, 19 so we can identify those points. 20 So, oops, I needed a racer. 21 Okay. So from 2000 to 2001, 22 again, much the same situation with 1999 to 2002, 23 it's more or less equal. 24 There might be a little bit of fluctuation here, 25 but not enough to be considered dramatic. 26 So B would be incorrect if we look at answer choice, 27 see that it declined steadily from 2002 to 2004, 28 we can again, identify these points on the graph. 29 So 2002 would be about here 2004 would be about here. 30 So you can s...