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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. A fracture or zone of fractures along the boundaries of tectonic plates where movement has taken place.






2. 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.






3. A rock that has crystallized from a molten state.






4. Uranus is named after the Roman god of the sky. It is the seventh planet from the Sun.






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






6. Living on land.






7. A molecule composed of three atoms of oxygen and mostly found in the stratosphere. Though beneficial in the upper atmosphere & at ground level & ozone is called photochemical smog & and is a respiratory irritant and considered a pollutant.






8. A sedimentary rock made up of chemical sediments. Example: rock salt.






9. 1. A low & bowl-shaped area of land surrounded by higher lands. 2. any large depression in which sediments are deposited.






10. Bent rock strata.






11. The area immediately below the ground surface within which pore spaces are partially filled with water and partially filled with air.






12. A building that contains one or more telescopes.






13. The weak or 'soft' zone in the upper mantle just below the lithosphere & involved in plate movement and isostatic adjustments. It lies 70 to 100 km below the surface and may extend to a depth of 400 km.






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






15. An isolated & steep-sided & rocky mass or island just offshore from a rocky headland & usually on a shore platform.






16. A study designed to collect critical data to be used for comparison or as a control in a later study.






17. The speed at which water flows.






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






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






20. The processes (mechanical and chemical) responsible for the wearing away & loosening & and dissolving of materials of the Earth's crust.






21. Deposits of wind-borne dust.






22. The region of a shore that is covered at high tide and exposed at low tide.






23. The zones of seismic activity long which plates are in contact.






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






25. The distance between two successive wave crests or troughs.






26. A building that contains one or more telescopes.






27. Rock formed from the accumulation of sediment & Which may consist of fragments and mineral grains of varying sizes from pre-existing rocks & remains or products of animals and plants & the products of chemical action & or mixtures of these.






28. The upper horizons in a soil & through which gravitational moisture travels & removing soluble decomposition products.






29. The area immediately below the ground surface within which pore spaces are partially filled with water and partially filled with air.






30. The mass of an object divided by its volume.






31. An icicle-shaped accumulation of dripstone hanging from cave roof.






32. A small ice sheet.






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






34. The chronological sequence of units of Earth time.






35. A valley carved by glacier erosion and whose cross-valley profile has steep sides and a nearly flat floor & suggestive of a large letter 'you'.






36. A major drainage divide separating the drainage to one ocean from another.






37. A measure of acidity.






38. A detailed mathematical description of the cause-and-effect relationships between events that can be used to predict or explain other such events.






39. Extending across a continent.






40. A statement of relative age in layered rocks: In a series of sedimentary rocks that has not been overturned & the topmost layer is always the youngest and the bottommost layer is always the oldest.






41. Water that flows across watersheds during and immediately after severe rainstorms. In populated areas & stormwater runoff is often water that cannot be handled by existing sewer systems. Stormwater runoff is the leading source of water pollution in t






42. A depression in the ground formed by the melting of a block of glacier ice buried or partially buried by drift.






43. A comet that passed Earth in 1997 and won't return to the inner solar system until the year 4377.






44. An aggregate of one or more minerals in varying proportions.






45. An area in which a large number of windmills have been erected to generate electrical power.






46. An era of time during the Phanerozoic eon lasting from 245 million years ago to 66.4 million ago.






47. Jupiter is named after the Roman king of the gods. It is the fifth planet from the Sun.






48. A seismic body wave that involves particle motion & alternating compression and expansion & in the direction of wave propagation. It is the fastest seismic wave. compare S-wave .






49. The symbol used on a map to indicate directions & both cardinal and ordinal.






50. 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.







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