Explanation for Question 52 From the Reading Section on the 2019 May Sat
Question 52 asks the information about the study of water. 2 Fleas is provided primarily as evidence in support of the idea that what, 3 so let's look back at their discussion of the study of water, 4 fleas, the results, and maybe how those results are applicable. 5 So we can find the evidence used to support or answer this question in 6 that highlighted section, it says, as expected, 7 the stratification squelched, the bio mixing generated by the swimming Daphnia, 8 the Daphnia they say up here is, 9 or are commonly known as waterfally. So that's how we know that this is 10 the waterfally study that we're talking about. So the stratification squelched, 11 the bio mixing generated by the swimming water fleas not says those results. 12 Aren't surprising. Visser says it's difficult to lift heavy water up and to push 13 lightwater down. So what they're saying here is that the results of this study 14 are that stratified water levels or heavy versus hot, 15 or excuse me, sorry. 16 Cold versus hot water and varying degrees of temperature would hinder 17 bio mixing and bio mixing is just the mixing of the water. 18 So if you look at the answer choices here, it says that 19 it primarily is evidence in support of the idea that ocean water is stratified 20 in layers of different densities. So answer choice a is going to be incorrect. 21 That's not what they were examining here. The fact of whether or not the 22 ocean was stratified, they started with the idea or the fact that 23 the o...