What causes days to change?
Space travel recovery time from fatigue Earth orbiting the Sun sunlight earthquakes Solar energy prolonged thirst global warming
A B C D E F G H
Days and hours change seasonally.
Earth orbiting the Sun causes days to change
What causes days to change? (A) Space travel (B) recovery time from fatigue (C) Earth orbiting the Sun (D) sunlight (E) earthquakes (F) Solar energy (G) prolonged thirst (H) global warming