LSAT 138 – Section 2 – Question 03

LSAT 138 - Section 2 - Question 03

December 2012

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Question
QuickView		 Type Tags Answer
Choices		 Curve Question
Difficulty		 Psg/Game/S
Difficulty		 Explanation
PT138 S2 Q03
+LR
Resolve reconcile or explain +RRE
Analogy +An
A
2%
156
B
95%
165
C
0%
152
D
2%
153
E
1%
154
130
138
147
 +Easier 147.395 +SubsectionMedium

Scientist: Venus contains a hot molten core, like that of Earth. Also like Earth, Venus must expel the excess heat the core generates. On Earth, this occurs entirely through active volcanos and fissures created when tectonic plates separate. Yet Venus has neither active volcanos nor fissures caused by the movement of tectonic plates.

"Surprising" Phenomenon

How does Venus expel the excess heat that its core generates, even though it doesn’t expel that heat through active volcanos or fissures caused by the movement of tectonic plates?

Objective

The correct answer should provide a way for Venus to expel excess heat from its core through means besides active volcanos or fissures caused by the movement of tectonic plates.

A
Rock on the surface of Venus remains solid at much higher temperatures than does rock on Earth.

The temperature at which Venus’s rocks remain solid doesn’t have a clear relationship to the ability to expel excess heat from the core.

B
The surface of Venus is relatively thin, allowing internally produced heat to radiate into space.

This describes a way Venus might expel excess heat. The heat might be expelled through the thin surface into space.

C
The interior of Venus undergoes greater fluctuations in temperature than does that of Earth.

Varying temperatures doesn’t change the fact that Venus still needs to expel excess heat. This doesn’t provide a theory about how Venus expels such heat.

D
Though Venus lacks active volcanoes and heat-diffusing fissures, it has surface movement somewhat like that of Earth.

Having surface movement doesn’t clearly relate to expelling excess heat. Does surface movement by itself help expel heat? We don’t know.

E
The atmosphere of Venus is significantly hotter than that of Earth.

The temperature of the outside atmosphere doesn’t suggest a method that allows Venus to expel heat from its core. The outside air might be hotter, but how did it become hotter? From the core’s heat? How did that heat get expelled? We don’t know.

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LSAT PrepTest 138 Explanations

Section 1 - Reading Comprehension

Section 2 - Logical Reasoning

Section 3 - Logical Reasoning

Section 4 - Logical Reasoning

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