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. A hot & gaseous & self-luminous celestial body & as the Sun.






2. Living on land.






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






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






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






6. A mudflow composed chiefly of pyroclastic material on the flanks of a volcano.






7. Any solid material that has settled out of a state of suspension in liquid.






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






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






10. An astronomical instrument for measuring angles & primarily altitude of celestial bodies to determine latitude.






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






12. The principle that states the processes operating to change the Earth in the present also operated in the past.






13. The oldest eon in Earth history & extending from the origin of the Earth to about 3.9 billion years ago.






14. Formed when an organism is flattened (compressed) and a thin film of organic material from its body is left in the rock.






15. A zone in the Earth between 400 and 670 km below the surface separating the upper mantle from the lower mantle.






16. An accumulation of wind driven sand into a distinctive shape.






17. A vent in the surface of the Earth & from which lava & ash & and gases erupt.






18. The first scientist to make systematic use of the telescope in looking at the heavens.






19. A process of land degradation initiated by human activity & particularly in the zones along the margins of deserts.






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






21. A narrow strip of land along the margin of the ocean extending inland for a variable distance from low water mark.






22. Distance over which wave-forming winds blow.






23. Lies half way between the north and south magnetic poles.






24. 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


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






26. Heat extracted from the Earth for use as an power source.






27. The layer of gases (air) & that surrounds a planet or moon.






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






29. Imaginary lines on a map or globe that measure distance in degrees east or west of the prime meridian. Longitude lines extend vertically & from pole to pole on a globe.






30. The Sun with all the celestial bodies that revolve around it.






31. A natural depression in the surface of the land caused by the collapse of the roof of a cavern or subterranean passage & generally occurring in limestone regions.






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






33. A large amount of gas and dust in space & spread out in an immense volume.






34. A river that is able to maintain its flow through a desert because of water received from outside the desert.






35. The direction & north (normal) or south (reversed) & that a magnetic compass needle points.






36. The outermost part of the core. It is liquid & about 1 &700 km thick & and separated from the inner & solid core by a transition zone about 565 km thick.






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






38. Open pit mining & typically for coal.






39. A conical volcano formed by the accumulation of pyroclastic debris around a vent.






40. 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






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






42. A broad & deep & generally straight furrow carved in bed rock by the abrasive action of debris embedded in a moving glacier. Larger and deeper than a glacial striation.






43. The low spot between two successive waves.






44. 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.






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






46. The speed at which water flows.






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






48. A narrow strip of land that has water on either side and connects two larger bodies of water.






49. 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






50. 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.