Answer:
6. Because of how old the rocks are
Explanation:
6. Sedimentary rock forms in layers because of the order they were formed. The older rocks will form first and as time goes on, rock forms above it to create a new layer, and so on.
The si unit for time is the second
The time when you can't see any of the moon at all is called "New Moon".
14.77 days later, the phase is "Full Moon".
