1. Which of the following gases is not a part of the Earth's atmosphere? A. Hydrogen B. Oxygen C. Nitrogen D. The earth doesn't contain any gasses Correct Answer: Hydrogen 2. What percent of the Earth's atmospheric chemical composition is Nitrogen? A. 12% B. 60% C. 78% D. 35% Correct answer: 78% 3. True/False: These are the five layers of the earth: Inner core, outer core, lower mantle, upper mantle, crust Correct Answer: True 4. What causes the Earth to have a magnetic field? A. The tech tonic plates shift B. Because the electric currents in the interior produce it C. Newtons 3rd Law D. The ions in the atmosphere Answer: B. Because the electric currents in the interior produce it 5. What is the radius of the Earth ? a. 3300 km b. 6400 km c. 1700 km d. 5500km correct answer : b. 6400 km 6. How thick is the Earth's crust? A. 1-200 km B. 5-50 km C. 300-450 km D. 465-495 km E. None of the above the Earth doesn't have a crust Answer: B 5-50 km 7. True or False: Earth's geographic North pole is not the same as its magnetic north pole A. True B. False Correct answer: A True 8. Which is the densest planet in the Solar System? a. Jupiter b. Mercury c. Neptune d. Earth Correct answer: D: Earth 9. What is Earth's outermost layer? A. The Hydrosphere B. The Atmosphere C. The Crust D. The Magnetosphere E. The Mantle Correct Answer: D - The Magnetosphere 10. What is happening to the Atlantic Ocean due to the tectonic plates and drift? A. Tides and waves are being formed B. The ocean is getting smaller by 2 cm every year C. Tsunamis and hurricanes form D. The ocean is expanding at a rate of 2 cm per year Correct Answer: D The ocean is expanding at a rate of 2 cm per year 11. What type of volcano formed and resides in Hawaii? A. Shield volcano B. Volatile volcano C. Mariana volcano D. Fault line volcano Correct Answer: A Shield volcano 13. What are the atmospheric layers of the Earth from closest to the surface to farthest away? A. Stratosphere Troposphere Thermosphere Mesosphere and Exosphere B. Troposphere Stratosphere Mesosphere Thermosphere and Exosphere C. Troposphere Mesosphere Thermosphere Exosphere and Stratosphere D. Stratosphere Exosphere Troposphere Thermosphere and Exosphere E. Exosphere Thermosphere Mesosphere Stratosphere and Troposphere Correct Answer: B trop strat mes therm exo 12. According to scientists how old is the Earth? A) 100 years old B) 10 billion years old C) 4.5 billion years old D) 13 million years old c. 4.5 billion years old 14. What is earth's average density? A. 4000kg/m3 B. 5500kg/m3 C. 5000kg/m3 D. 7500kg/m3 Correct Answer: B 5500 kg/m3 15. The two circular zones of high energy particles contained within Earth's magnetosphere are known as: A. Magnetic spheres B. Ecliptic zones C. Van Allen Belts D. Aurora Correct answer: C van allen belts 16. How big (approximately) is Earth's radius? A. 4000 miles B. 16,000 miles C. 6,000 miles D. 14,000 miles, Correct Answer: A 4000 miles 17. Which gas is most abundant in Earth's atmosphere? A. Carbon dioxide B. Nitrogen C. Oxygen D. Argon Correct Answer: B. Nitrogen 18. What percentage of the Earth's surface is covered by water? A. 83% B. 59% C. 71% D. 66% Correct answer: C 71. What is the major geological activity that takes place on Earth due to plate tectonics? A. Earthquakes B. Tornados C. Tsunamis D. Hurricanes Correct answer: A earthquakes