Author Question: The movement of Earth with the sun and the rest of the solar system in an orbit around the center of ... (Read 45 times)

bb · **on:** Aug 7, 2018

The movement of Earth with the sun and the rest of the solar system in an orbit around the center of the Milky Way Galaxy is termed:
a. rotation.
b. cosmic movement.
c. galactic movement.
d. revolution.

Question 2

The _______________ line is the elevation line above which summer melting is insufficient to remove all of the preceding winter's snowfall.
Fill in the blank(s) with correct word