6. When the Northern Hemisphere is tilted toward the Sun, the Southern Hemisphere is experiencing. A. Autumn B. Summer C. Winter D. Spring
7. It is a time of a year when the length of daytime and nighttime is equal. A. Winter solstice B. Summer solstice C. Equinox D. Axis
8. In a leap year, February has how many days? A. 27 B. 28 C. 29 D.30
9. Which term describes the movement of the Earth around the sun? A. Rotation B. Revolution C. Spinning D. Precession
10. How long does it take for the Earth to go one complete revolution around its orbit? A. 12 hours B. 24 hours C.36 hours D. 48 hours​