Test your basic knowledge |

Earth Science

Subject : science
Instructions:
  • Answer 50 questions in 15 minutes.
  • If you are not ready to take this test, you can study here.
  • Match each statement with the correct term.
  • Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. The upper horizons in a soil & through which gravitational moisture travels & removing soluble decomposition products.






2. Soil conditions prevailing in area whose mean annual temperature is 0o C.






3. A sea wave produced by any large-scale & short duration disturbance on the seafloor & commonly a shallow submarine earthquake but possibly also a submarine slide or volcanic eruption.






4. The method of locating an epicenter by determining how far it lies from three widely separated seismographs.






5. The line formed by the intersection of the axial plane of a fold with a bedding plane & marking where the bed shows its maximum curvature.






6. The rise and fall of sea level caused by the gravitational pull of the Sun and Moon on the Earth.






7. (Latin- Terra & Greek- Gaia) Earth is named after the ancient Germanic Goddess of the soil. It is the third planet from the Sun.






8. The level of light that penetrates through water.






9. The breaking away of ice from the front of the glacier when it ends in a lake or an ocean. Produces icebergs.






10. The acidity in rain due to gases from internal combustion engines and coal- and oil-burning power plants.






11. A device built to study distant objects by making them appear closer.






12. A process of erosion in which wind carries off particles of dust and sand.






13. No identifiable layers of minerals in a rock sample






14. Reduction of pore space between individual particles as the result of overlying sediments or of tectonic movements.






15. A tool for measuring the relative clarity of water.






16. A mass of ice & formed by the recrystallization of snow & that flows forward & or has flowed at some time in the past.






17. The condition of equilibrium & comparable to floating & of units of the lithosphere above the asthenosphere.






18. Lacking in rainfall & very dry.






19. Imaginary lines on a map or globe that measure distance in degrees north or south of the equator. Latitude lines extend horizontally & from east to west on a globe.






20. Mountains & characterized by extensive folding and thrust faulting & that form at convergent plate boundaries on continents.






21. Imaginary lines on a map or globe that measure distance in degrees north or south of the equator. Latitude lines extend horizontally & from east to west on a globe.






22. An instrument that detects & magnifies & and records vibrations of the Earth & especially earthquakes.






23. The closest galaxy to the Milky way. It is approximately 2 million light-years away.






24. A chuck of rock or dust in space.






25. 1. A mass of sand & gravel & or alluvium deposited on the bed of a stream & sea & or lake & or at the mouth of a stream 2. A unit of pressure & approximately equal to atmospheric pressure at sea level.






26. Deposits of wind-borne dust.






27. Mars is named after the Roman god of war. It is the fourth planet from the Sun.






28. A waste material that contaminates air & water & or soil.






29. An instrument that merely indicates the occurrence of an earthquake.






30. An era of geologic time lasting from 570 to 245 million years ago.






31. A landscape that develops from the action of ground water in areas of easily soluble rocks. It is usually characterized by caves & underground drainage and sinkholes.






32. The two days of the year on which the noon sun is directly overhead at either 23.5






33. The current geologic era & which began 66.4 million years ago and continues to the present.






34. (Latin- Terra & Greek- Gaia) Earth is named after the ancient Germanic Goddess of the soil. It is the third planet from the Sun.






35. Soil conditions prevailing in area whose mean annual temperature is 0o C.






36. A narrow & steep-walled depression in the ocean floor & much deeper than the adjacent ocean and associated with a subduction zone.






37. A time of unusual winds and currents in the Pacific Ocean . El Nino generally causes warmer-than-normal sea surface temperatures and increased rainfall and storm activity.






38. A mound or ridge of sediment deposited by a glacier.






39. A low & nearly flat accumulation of sediment deposited at the mouth of a river or stream & commonly triangular or fan-shaped.






40. To preserve & or to avoid wasteful use.






41. A region of high heat flow on the Earth's surface & thought to lie above a mantle plume .






42. A commonly used scale of earthquake intensity.






43. Shapes & like mountains or hills that make up the Earth's surface.






44. The attractive force between two objects; its magnitude depends on their masses and the distance between them.






45. Pertaining to or composed of granite & a coarse-grained igneous rock dominated by light-colored minerals & consisting of about 50 percent orthoclase & 25 percent quartz & and balance of feldspars and ferromagnesian silicates. Granite is commonly foun






46. That part of the continental margin that lies between the continental shelf and the continental rise. Slope relatively steep & 3o - 6o. The continental slope is underlain by crustal rocks of the continent.






47. The height of a place above sea level.






48. The southern portion of the late Paleozoic supercontinent known as Pangea. It means & literally 'Land of the Gonds' (a people of the Indian subcontinent).The supercontinent existed from Cambrian to Jurassic time & mainly composed of South America &






49. The peak flow of water that tops the banks of a stream channel.






50. A thickened elevated region of Earth's crust that is mainly (but not entirely) above sea level.