This quiz works best with JavaScript enabled. Home > Science > Earth > Earth Science – Quiz 23 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Earth Science Quiz 23 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What is a self-contained convective zone in a fluid in which upward motion of warmer fluid in the center is balanced by downward motion of cooler fluid at the periphery? A) Convection. B) Pressurization. C) Subduction. D) None of above. Show Answer Correct Answer: A) Convection. 2. The process in which water becomes richer in dissolved nutrients resulting in oxygen deficiency. A) Air pollution. B) Water pollution. C) Eutrophication. D) Thermal pollution. Show Answer Correct Answer: C) Eutrophication. 3. What is the proper way for testing the hardness of a mineral? A) Hitting it with a hammer. B) Eroding it with strong acid. C) Chipping off a piece with a chisel. D) Scratching it with different materials. Show Answer Correct Answer: D) Scratching it with different materials. 4. Hardness is a property that helps identify minerals. Scientists use a scale of 1-10 to show the hardness of a mineral. What number would be given to the softest? A) 1. B) 3. C) 5. D) 10. Show Answer Correct Answer: A) 1. 5. In 2006 Pluto was demoted from planet to dwarf planet. A) Oceanography. B) Astronomy. C) Meteorology. D) Geology. Show Answer Correct Answer: B) Astronomy. 6. Which is true of all scientific models? A) They never change. B) They must be true for at least 10 years. C) They will be modified with new observations and data. D) They are generally the work of one scientist. Show Answer Correct Answer: C) They will be modified with new observations and data. 7. When rainfall occurs, the rainwater will most likely become surface runoff if the land surface is A) Sandy. B) Impermeable. C) Covered with grass. D) Nearly flat. Show Answer Correct Answer: B) Impermeable. 8. Associated with transform boundaries. A) Volcanoes. B) Mountains. C) Trenches. D) Earthquakes. Show Answer Correct Answer: D) Earthquakes. 9. The following are ways to solve ecological problems except: A) Proper maintenance of vehicle engines. B) Smoke belching should be allowed. C) Industrial firms must utilize pollution control devices. D) Paper and bottles may be recycled. Show Answer Correct Answer: B) Smoke belching should be allowed. 10. Which of the following refers to ability of minerals to reflect light on its surface? A) Streak. B) Luster. C) Fluorescence. D) Color. Show Answer Correct Answer: B) Luster. 11. Tropic of Cancer is an imaginary line 23 1/2- degree ..... of the equator. A) East. B) North. C) West. D) South. Show Answer Correct Answer: B) North. 12. The land on the ..... side of a mountain range gets almost all of the precipitation A) Windward. B) Far. C) Leeward. D) South. Show Answer Correct Answer: A) Windward. 13. Which of the following is a part of weather? A) Temperature. B) Wind direction. C) Precipitation. D) All of the above. Show Answer Correct Answer: D) All of the above. 14. Extrusive rocks that form quickly above the Earths surface have A) Small crystals. B) Large crystals. C) Small and large crystals. D) No crystals. Show Answer Correct Answer: A) Small crystals. 15. Melted, liquid rock beneath Earth's surface A) Metamorphic rock. B) Magma. C) Sedimentary rock. D) Lava. Show Answer Correct Answer: B) Magma. 16. The troposphere is the ..... layer which contains about 75 percent of the total mass of the atmosphere . A) Lowest. B) 2nd lowest. C) Middle. D) Upper. Show Answer Correct Answer: A) Lowest. 17. Ozone is concentrated in the stratosphere, between 44 and ..... above the Earth. A) 49. B) 46. C) 52. D) 56. Show Answer Correct Answer: D) 56. 18. Why does the sun appear to rise in the east and set in the west? A) Earth's revolution. B) Sun's revolution. C) Earth's rotation. D) Sun's rotation. Show Answer Correct Answer: C) Earth's rotation. 19. One difference between a breccia rock and aconglomerate rock is that the particles in a brecciarock are A) More aligned. B) More angular. C) Harder. D) Land derived. Show Answer Correct Answer: B) More angular. 20. A part of the Earth's crust where two tectonic plates slide past each other A) Tectonic plates. B) Transform boundary. C) Divergent boundary. D) Convergent boundary. Show Answer Correct Answer: B) Transform boundary. ← PreviousNext →Related QuizzesScience QuizzesEarth Science Quiz 1Earth Science Quiz 2Earth Science Quiz 3Earth Science Quiz 4Earth Science Quiz 5Earth Science Quiz 6Earth Science Quiz 7Earth Science Quiz 8Earth Science Quiz 9 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books