PrepTest 106, Section 4, Question 10
Long after the lava has cooled, the effects(450 more words not shown)
To which one of the(20 more words not shown)
- AAn increase in(33 more words not shown)
- BAn increase in(38 more words not shown)
- CAn increase in(39 more words not shown)
- DAn increase in(28 more words not shown)
- EAn increase in(44 more words not shown)
Reading the passage
We need a process that reinforces its starting change. In the example, a little cooling leaves more snow; the snow reflects sunlight away, producing more cooling. That extra cooling helps keep the snow around. The sequence doesn't just end somewhere new—it strengthens the condition that started it.
What we’re looking for
Trace that connection in each answer. The subject matter can change completely, as long as the relationship fits.
Working the answers
- ACorrect
More decaying matter produces more nutrients, which supports more plants, which produces still more decaying matter. We end with an increase in the condition that began the sequence. That's the same reinforcing pattern as cooling that leads to more cooling.
- B
This starts with more wolves and ends with more other animals. Nothing connects the final increase back to an increase in wolves. It's a chain of effects without the required return.
- C
More rain eventually changes wolves' opportunities to catch deer. It doesn't produce more rain or otherwise reinforce the initial change.
- D
This does involve a response to warming, but it works against that warming: the phytoplankton block sunlight and decrease ocean temperature. The example we're matching amplifies cooling rather than counteracting the initial change.
- E
The insect and bat changes partly reverse the earlier increases. They don't reinforce the original increase in outdoor lighting. This isn't the amplifying pattern illustrated by the snow and cooling.
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