LSAT 119 – Section 4 – Question 11

LSAT 119 - Section 4 - Question 11

June 2005

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Question
QuickView		 Type Tags Answer
Choices		 Curve Question
Difficulty		 Psg/Game/S
Difficulty		 Explanation
PT119 S4 Q11
+LR
+Exp
Strengthen +Streng
A
97%
162
B
0%
152
C
0%
149
D
1%
155
E
1%
154
120
129
139
 +Easiest 145.1 +SubsectionEasier

According to the theory of continental drift, in prehistoric times, many of today’s separate continents were part of a single huge landmass. As the plates on which this landmass rested began to move, the mass broke apart, and ocean water filled the newly created chasms. It is hypothesized, for example, that South America was once joined on its east coast with what is now the west coast of Africa.

Summarize Argument: Phenomenon-Hypothesis
The author hypothesizes that South America and Africa were once joined. This is because the continents used to be part of a single massive landmass, which then broke apart as plates shifted.

Notable Assumptions
The author assumes that South America and Africa are situated in such a way that suggests they were once joined before breaking apart.

A
A large band of ancient rock of a rare type along the east coast of South America is of the same type as a band on the west coast of Africa.
This is evidence that South America and Africa were once joined. The rare rock in question is unlikely to exist on both coasts if the continents weren’t joined at one point.
B
Many people today living in Brazil are genetically quite similar to many western Africans.
Continental drift happened long before humans existed. Such genetic differences have different explanations.
C
The climates of western Africa and of the east coast of South America resemble each other.
Irrelevant. Climates are affected by many things, but continental drift from millions of years ago aren’t one of them.
D
Some of the oldest tribes of people living in eastern South America speak languages linguistically similar to various languages spoken by certain western African peoples.
Like (B), continental drift happened long before humans. Such linguistic differences have different explanations.
E
Several species of plants found in western Africa closely resemble plants growing in South America.
Plants migrate for many reasons. It’s likely these species were carried across the ocean in more recent times.

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LSAT PrepTest 119 Explanations

Section 1 - Reading Comprehension

Section 2 - Logical Reasoning

Section 3 - Logical Reasoning

Section 4 - Logical Reasoning

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