4. 1. Which of the following is caused by Earth's rotation? day and night III. climate changes II. wind deflection IV. time variation in different locations A. I only C. I,II, and III B. I and II D. I, II, and IV 5. Which of the following is NOT true? A. Revolution of Earth causes differences in the length of daytime and nighttime in different places. B. Revolution of Earth causes different climates in different regions. C. Revolution of Earth causes day and night. D. Rotation of Earth causes day and night. When is the longest daytime in the northern hemisphere? A. September 21 or 22 C. March 21 or 22 B. December 21 or 22 D. June 21 or 22 6. 7. Why is there a 24-hour nighttime in the South Pole on June 21 or 22? A. because the Sun's slanting rays do not reach the area B. because the Sun's vertical rays strike the equator C. because the Sun does not emit light on that day D. because the Sun's rays directly strike the area 8. What is the season in the northern hemisphere when Earth's axis is tilted toward the Sun? 9. 9 A. autumn C. summer B. spring D. winter Which part receives the vertical rays of the Sun in December? A. Tropic of Capricorn C. North Pole B. Tropic of Cancer D. equator What causes the deflection of the wind from poles to the equator and vice versa? C. Tropic of Capricorn A. vertical rays of the Sun D. rotation of Earth B. revolution of Earth 10.​