Answers TPS EdX Biology Biological Evidence and the Fossil Record — TestQuestion 7

7

QuizMultiple Choice

Biological Evidence and the Fossil Record — Test

Question 7 • TPS EdX Biology

Which best explains how scientists confirmed that the moon formed around the same time as Earth?

Answer

A

Scientists used radioactive dating to study the age of material from the moon and Earth.

B

Scientists determined the approximate age of fossils from the moon and Earth.

C

Scientists explored the cycle of condensation and evaporation over time on the moon and Earth.

D

Scientists analyzed the content of gases that were part of the atmospheres on the moon and Earth.

Explanation

Scientists estimate the age of rocks and other material by measuring radioactive isotopes and their decay products. Comparing lunar samples with the oldest Earth materials showed that the Moon formed at roughly the same time as Earth. Fossils are not a useful method because the Moon has no known fossil record.

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