Question

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

A. Scientists determined the approximate age of fossils from the moon and Earth.
B. Scientists used radioactive dating to study the age of material 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.

Answer 1

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

Answer 2

Radioactive dating is a technique for determining the age of objects like rocks and carbons. It is also used to find out the age of various rocks, fossils and the earth itself.

Scientists used radioactive dating to study the age of material from the moon and Earth. The correct option is (B).

Radioactive dating

• Scientists use radioctive dating to compare radioactive isotopes found in old or long-lived rocks and minerals to stable isotopes of other elements.

• By comparing an element with a known rate of decay and knowing its concentration in rocks on the moon or on the Earth's surface, researchers can compute the time when the substance created.

• According to new research, the moon formed near the end of the Earth's construction.

Thus, (B) Scientists used radioactive dating to study the age of material from the moon and Earth is right option.

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