Answer Choices
powerful volcanic eruptions occur frequently.
the effects of volcanic eruptions can last for centuries.
scientists know of other volcanoes that erupted during the Middle Ages.
other volcanoes have calderas that are very large.
Explanation for Question 48 From the Reading Section on the Official Sat Practice Test 4
2 48 says as used in line 68, 2 the phrase another possible candidate implies what? 3 So let's look into the passage for some context here. 4 What they're talking about is in the last paragraph, 5 the sentence says another possible candidate, 6 both in terms of timing and geographical location is Ecuador's Keela TOA, 7 estimated to have last erupted between 1147 and 1320 CE. 8 So basically what they're saying is another possible volcanic eruption that could have caused 9 this little ice age that they're describing the cause and effect relationship between. 10 It could have been this volcano in Ecuador called Keala TOA, 11 because it seems to have a ruptured maybe around the same time. 12 And it's also in the ideal geographical location that they determined earlier just being 13 Ecuadorian. So let's look at the answer choices and see which one best 14 matches that information. So answer choice a says powerful volcanic 15 eruptions occur frequently. 16 So this answer choice is going to be incorrect because it's not 17 talking about the frequency of, or it's not focusing on the frequency of these 18 volcanic eruptions and how that's relevant. 19 It's talking about when it erupted in one point in time and 20 also where it's located. And it also says the sentence 21 that we're talking about, that it lasts erupted in 1100 or 1300 22 CE. So that's not really frequently if that was 700 ish years ago. 23 So that's why answer choice a would be incorrect answer choice B says 24 the effe...