Moon rocks brought back to Earth were collected from two general regions on the

Question

Moon rocks brought back to Earth were collected from two general regions on the lunar surface: the maria and the highlands. These rocks fall into three groups: mare basalts, highland breccias, and highland igneous rocks. The (Select answerare oldest. highland breccias highland igneous rocks mare basalts The Select answerare youngest. Mare Basalt The above image is of a lunar basaltic rock, formed from a solidified lava flow. Collected by the Apollo 15 astronauts, this type of basalt typifies the surface rock of the lunar maria. For more information about this image, go to Resources: Help With This Topic. (NASA)

Explanation / Answer

answer) highland breccias it is 3.9 billion years old.

mare basalts are younger with 1 billion years old.

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