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 zone below the zone of aeration in which all pore spaces are filled with water.






2. A dense & hot (sometimes incandescent) cloud of volcanic ash and gas produced in a Pelean eruption.






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






4. A term applied to large areas of basaltic lava presumably extruded from fissures.






5. Open pit mining & typically for coal.






6. The sudden fall of one or more large pieces of a rock from a cliff.






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






8. A rigid segment of the Earth's lithosphere that moves horizontally and adjoins other plates along zones of seismic activity. Plates may include portions of both continents and ocean basins.






9. A rigid segment of the Earth's lithosphere that moves horizontally and adjoins other plates along zones of seismic activity. Plates may include portions of both continents and ocean basins.






10. The transformation of a soil from a solid to a liquid state as the result of increased pore pressure.






11. A natural open space underground & large enough for a person to enter. Most commonly occur by the dissolution of soluble rocks & generally limestone.






12. The Earth's crust underlying the ocean basins which is formed at mid-oceanic ridges. It is typically 5 to 10 kilometers thick composed of basalt.






13. A minor tremor that precedes an earthquake. An increase in seismicity may signal that a major release of strain energy is about to occur.






14. Till deposited from main body of glacier during ablation.






15. A geometrical form taken by a mineral & giving external expression to orderly internal atomic arrangement.






16. As applied to glacier ice & the process by which ice below the snow line is wasted by evaporation and melting.






17. A cavity in a lava & formed by the entrapment of a gas bubble during solidification of the lava.






18. A cyclical pattern of movement in a fluid body such as the ocean & the atmosphere & or the Earth's mantle & driven by density variations which in turn are the result of differences in temperature from one part of the fluid to another.






19. Named after the Roman god of the sea. It is the eighth planet from the Sun.






20. The distance light travels through a vacuum in one year.






21. A measure of the size of an earthquake in terms of the damage it causes.






22. A segment of an active fault zone that has not experienced a major earthquake during a time period when most other segments of the zone have. They are generally regarded as having a higher potential for future earthquakes.






23. A small & dust-bearing whirlwind.






24. The transformation of a soil from a solid to a liquid state as the result of increased pore pressure.






25. A substance that produces negatively charged hydroxide ions ( OH- ) in water and reacts with acids to form salts.






26. The process of one plate descending beneath another.






27. Any porous and permeable rock that yields oil or natural gas.






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






29. Bent rock strata.






30. The height of a place above sea level.






31. That portion of the resources for a valuable mineral commodity that can be extracted from the Earth at a profit today.






32. A group of stars that appear to make a pattern in the sky. The Big Dipper is a constellation.






33. Applies to igneous rocks that cool on the surface of the Earth & including beneath water; typically with small crystals due to the rapidity of cooling. Synonym of extrusive. Antonym of plutonic.






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






35. The theory of Plate Tectonics states that the Earth's crust is fragmented into a dozen or more large and small pieces floating on a semi-molten mantle.






36. Fossils formed when water containing minerals leaks into a mold. The minerals harden to form a copy of the original structure or organism.






37. 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






38. An eruption of lava that takes place from a fracture & usually without producing a cone.






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






40. The vertical distance between the crest and adjacent trough of a wave.






41. Deserts in zones of descending air between 25 degrees and 30 degrees north and south latitude.






42. The amount of dissolved salt in water.






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






44. The part of the crust that directly underlies the continents and continental shelves. Averages about 35 km in thickness & but may be over 70 km thick under largest mountain ranges.






45. The great circle on the Earth's surface passing through The North and South Poles & which is considered 0 degrees longitude. The prime meridian passes through Greenwich & England & and is used as a reference point for measuring longitude east and w






46. Any accumulation of material & by settling from water or air & chemical precipitation & evaporation from solution & etc.






47. A volcanic mountain on the seafloor. If flat-topped & it is a guyot.






48. Glacial deposits laid down directly by glaciers or laid down in lakes & ocean & or streams as result of glacial activity.






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

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183


50. An abandoned meander .