[Video] Q20: Which choice best completes the description of a self-reinforcing cycle?

Explanation for Question 20 From the Writing Section on the Official Sat Practice Test 1

So question 20 is asking us, which of the following best completes a description 2 of a self-reinforcing cycle. So our first question is what is a self-reinforcing cycle, 3 right? And if we look right here, it describes one to us, 4 it doesn't give us an exact definition, but it kind of gives us an 5 example with the, uh, with the ice melting. 6 And so it says, as the ice melts the land and water under the 7 ice become more exposed. And since land and water darker is snow, 8 the surface absorb even more heat. 9 And so what's happening here is the CIT lands on the ice and the 10 S is dark. Whereas the ice is light. 11 So the dark, uh, absorbs more heat and then it melts the ice. 12 But once that ice is melted, you end up getting even more dark material, 13 right. The land and the water. And so that absorbs even more heat, 14 which melts even more ice. 15 So it's kind of this just cycle of continuous, 16 continuous heat and raising temperatures. 17 Right? And so a might look good. 18 B might look good, right? Because they're both talking about raising surface temperature, 19 which is what is happening. That's not necessarily wrong. 20 But if we look at what the question is asking us, it's asking us 21 what completes the cycle, right? 22 And so we've already talked about the raising temperatures right here. 23 When we said this, that shows rising temps on the surface. 24 And if we think about that first off a might be incorrect because it's 25 not raising the temperature of the ...