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Ch. 2 Quiz Multiple Choice Identify the letter of the choice that best completes the statement or answers the question. ____ ____ ____ ____ ____ ____ ____ ____ 1. Which area of Earth receives the most solar energy in a year? a. the tropics c. the Antarctic Circle b. the polar regions d. the middle latitudes 2. Which of the following planets does not have an atmosphere and lithosphere? a. Earth c. Venus b. Mercury d. Mars 3. When does the fall equinox occur in the Northern Hemisphere? a. March 21 c. September 21 b. June 21 d. December 21 4. Planets are major bodies that orbit a(n) ____. a. satellite c. moon b. asteroid d. star 5. Earth's atmosphere is composed of about 78 percent of what gas? a. carbon dioxide c. water vapor b. oxygen d. nitrogen 6. Which of the following is not a satellite? a. the Moon c. the Sun b. the Earth d. Space Lab 7. What causes the tides on Earth? a. the gravitational pull of the Sun, Earth, and Moon b. the gravitational pull of the Sun and Moon c. Earth's tilt d. Earth's revolution 8. How many days are in a leap year? a. c. 365 b. ____ ____ ____ ____ ____ d. 366 9. On which day does the Sun never set on the Arctic Circle? a. September 22 c. March 21 b. December 21 d. June 21 10. The outermost sphere of Earth is called the ____. a. hydrosphere c. atmosphere b. biosphere d. lithosphere 11. On a ____, there are equal periods of daylight and darkness. a. solstice c. Arctic Circle b. equinox d. equator 12. Together, the four spheres of Earth make up the ____. a. Earth environment c. planet b. Earth system d. biology 13. The Moon orbits Earth every ____. a. 24 hours c. days b. 30 days d. days ____ 14. The shape of Earth's orbit is ____. a. elliptical b. flattened ____ 15. Which planet is not gaseous? a. Saturn b. Mars c. an oblate spheroid d. circular c. Venus d. Uranus Matching Match each item with the correct statement below. a. moons g. b. tropics h. c. atmosphere i. d. rotation j. e. polar region k. f. planets l. ____ ____ ____ ____ ____ ____ ____ ____ ____ ____ 16. 17. 18. 19. 20. 21. 22. 23. 24. 25. equinox biosphere revolution solstice hydrosphere system major bodies that orbit a star time at which Earth's poles point at the greatest angle away from or toward the Sun a group of different parts that interact to form a whole one elliptical orbit of Earth around the Sun the part of Earth that includes all life occurs when both hemispheres receive an equal amount of sunlight smaller objects that orbit a planet all of Earth's water warm low-latitude areas near the equator the envelope of gases that surround Earth