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 zones of seismic activity long which plates are in contact.






2. 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 .






3. The uprush of a wave onto the beach followed by the return flow of the water down the beach slope in the intervals between waves.






4. A soft compact calcite & CaCO3 & with varying amounts of silica & quartz & feldspar & or other mineral impurities & generally gray-white or yellow-white and derived chiefly from fossil seashells.






5. To change back and forth uncertainly.






6. A flood that rises and falls very rapidly.






7. Gases that can be dissociated by solar radiation & which releases chlorine & which in turn destroys ozone.

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






9. A ridge of high water associated with a hurricane and which floods over the shore .






10. Mercury is named after the Roman messenger of the gods. It is the closest to the Sun.






11. The surface between the zone of saturation and the zone of aeration.






12. The tendency of a moving object to continue in a straight line or a stationary object to remain in place.






13. An abandoned meander .






14. Woodland that usually gets at least 100 inches of rain each year.






15. 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.






16. A collection of maps.






17. Deposition of fine mineral particles (silt) on the beds of streams or lakes.






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






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






20. 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.






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






22. The line that separates one drainage basin from another.






23. Either the northern or southern half of the Earth as divided by the equator & or the eastern or western half as divided by a meridian.






24. The elevation at which snow persists throughout the year.






25. Sediments produced directly by the life processes of plants or animals.






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






27. Where two plates are moving in opposite directions as in a mid-ocean ridge.






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






29. A substance that produces positively charged hydrogen ions (H+) when dissolved in water.






30. A commonly used scale of earthquake intensity.






31. Any place where bedrock is visible on the surface of the Earth.






32. The tendency of a moving object to continue in a straight line or a stationary object to remain in place.






33. 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.






34. Weathering processes that are the result of chemical reactions. Example: the transformation of orthoclase to kaolinite.






35. An earthquake that follows and has its epicenter near a larger earthquake.






36. A Hawaiian term for a lava flow that has a rough & jagged surface.






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






38. Glacial drift composed of rock fragments that range from clay to boulder size and randomly arranged without bedding.






39. A measure of the strength of an earthquake based on the amount of movement recorded by a seismograph . compare Richter scale.






40. The pattern of water circulation from the ocean to the atmosphere to the land and back to the ocean.






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






42. A large area with common features that set it apart from other areas.






43. The very small particles of dirt & soot & and other pollutants that are present in the air.






44. Similar to a groin but built to keep sand out of a harbor entrance.






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






46. The average weather conditions of an area over many years & as measured by temperature & wind speed & and precipitation.






47. A floating ice sheet extending across water from a land-based glacier.






48. (Greek-Aphrodite)named after the Roman goddess of love. It is the planet closest in size to Earth and the second planted from the Sun.






49. A method of sediment transport in which the turbulence of a fluid is able to keep particles supported in the fluid.






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