Free Practice Question
CR · Critical Reasoning
555-605
Weaken
A pottery shard found in a site in Texas, 1,500 miles north of Mexico, is dated to be 9,500 years old. Researchers concluded that since the desert conditions prevented human migration north from the Mexico-Guatemala region between 12,000 and 9,000 years ago, humans must have arrived in North America more than 12,000 years ago.
Which of the following pieces of new evidence would cast doubt on the conclusion drawn above?
Which of the following pieces of new evidence would cast doubt on the conclusion drawn above?
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(A) New archaeological findings in Mexico indicate that humans were present there at least 11,000 years ago.
B
(B) A new site was discovered in Arizona with artifacts dated at 10,500 years old.
C
(C) A climate model suggested that the desert conditions were not as severe as previously thought, allowing for migration as early as 12,500 years ago.
D
(D) New dating techniques revealed that the pottery shard from the Texas site is actually 9,800 years old.
E
(E) Studies of migration patterns suggest that once the climate improved, humans could have moved from Mexico to Texas in about 15 years.
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B
Bish0pMar 7, 2025
can you explain more?
Details
Difficulty
555-605
Type
CR