Question

which best explains how scientists confirmed that the moon formed around the same time as earth?

scientists determined the approximate age of fossils from the moon and earth

scientists used radioactive dating to study the age of material from the moon and earth.

scientists explored the cycle of condensation and evaporation over time on the moon and earth.

scientists analyzed the content of gases that were part of the atmospheres on the moon and earth.

Explanation:

Step1: Analyze each option

• Option 1: The moon has no fossils. So this option is incorrect.
• Option 2: Radioactive dating is a valid method to determine the age of materials. If the ages of materials from the moon and Earth are similar, it can support the idea that they formed around the same time.
• Option 3: The cycle of condensation and evaporation is not related to determining the formation time of celestial bodies.
• Option 4: Analyzing gas content in atmospheres is not a way to confirm the formation time of the moon and Earth.

Answer:

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