Explanation for Question 12 From the Writing Section on the 2019 October Sat
Now question number 12, asks us to effectively combine two sentences two together. 2 And these two sentences say that artificial light is now known to cause sleep 3 problems. It does this by impacting circadian rhythm. 4 So the best way to go about a question like this is going to 5 be, to use process of elimination, to get rid of any answer choices that 6 we know don't sound good. And then hopefully arrive at one answer choice in 7 the end that will work and will sound pretty good. 8 And if we look at a, it says, um, can cause problems because of 9 its impact on circadian rhythm. And so that should roll off the tongue tongue, 10 right? It sounds pretty good. Um, because of is a common phrase that people 11 say impact on is also good. 12 It's not really repetitive. So a first glance seems to be a really good 13 answer choice. 14 If we look at B, right, we have a semi-colon, 15 it can cause sleep problems. Its impact is on blank. 16 And so B is perhaps a little bit more wordy unnecessarily than 17 a right, because it tells us its impact is on rather than just saying 18 because of the impact on right. 19 So we have an extra is in here. You could also argue that it's, 20 it's unclear what it is, 21 right. You might not know for sure. It's possible that it's the artificial light, 22 but overall B is just a little bit more unclear than a, 23 because of the SIM because of the extra is so B's not as good 24 as a and we can eliminate it. Now, 25 answer choice C says problems, comma w...