Question

1. this kind of rock, found on the moon, was important in the scientific study of the age of the moon.

○ anorthosite

○ regolith

○ quartz

○ salt

Explanation:

Anorthosite is a rock abundant in the Moon's highlands. Radiometric dating of anorthosite samples (e.g., from Apollo missions) helped determine the Moon's age (~4.5 billion years). Regolith is lunar soil, not a rock; quartz and salt are rare/absent on the Moon in forms useful for age dating.

Answer:

A. anorthosite