3. Explain the discovery of mid-ocean ridges
helped support the hypothesis of continental
drift as well as explain some of the processes
that occur beneath Earth's surface. Where
does the material involved in sea-floor
spreading come from?

Why do we always see the same side of the moon? 1. the moon rotates at the same speed as the earth rotates. 2. the moon revolves around the earth at the same rate the earth rotates on its axis. 3. the moon rotates on its axis at about the same speed as it revolves around the earth.