9. What causes the four seasons in other countries? A. the sun's gravitational pull B. the Earth's rotation C. the Earth's tilting on its axis and its revolution around the sun D. the distance of the Earth from the sun at different points in the Earth's orbit
10. What happens every September 23 when the day and night are of equal length
A. summer quinox
B. autumnal equinox
C. winter quinox
D. spring equinox 6-Spence QUARTER MOOLLEE​