What are rotation and revolution and how do they affect Earth?

Rotation refers to an object's spinning motion about its own axis. "Revolution" refers the object's orbital motion around another object. For example, Earth rotates on its own axis, producing the 24-hour day. Earth revolves about the Sun, producing the 365-day year.

a:

by the combination of an unlimited number of elements

i think the answer is terrae but not 100 percent sure. ▓▬▬ §