Current can flow through an electric circuit Inly when the switch is

Closed

Explanation:

If a switch is open than it is impossible for the current to go through the circuit.

Sun is the solar that illustrate everything some planets are very long from where the sun is

The moon is the night as the sun is the day it has a dark color and is very fun to see it

The earth is were we live we have both the sun and the moon the sun helps us see whiout dark and the moon is dark