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 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.






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






3. An artificial hill formed by the debris of successive human settlements.






4. The concept of a sequence of events involving the formation & alteration & destruction and reformation of rocks as a result of geologic processes.






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






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






7. The persistence of wind-formed waves after wind ceases.






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






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






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






11. Iron & aluminum & magnesium & manganese & and titanium. Ores of the abundant metals only need to be 3 - 5 times as metal-rich as average rock.






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






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






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






15. A period of dryness & that when prolonged & causes damage to crops; a shortage of water.






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






17. Surficial mining & in which the valuable rock is exposed by removal of overlying rock or soil.






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






19. The environment where a particular plant or animal is normally found.






20. A steep or vertical cliff & either above or below sea level.






21. The geologic eon lying between the Archean and Phanerozoic eons & beginning about 2.5 billion years ago and ending about 0.57 billion years ago.






22. A division of geologic time next shorter than a period. Example: the Pleistocene epoch is in the Quaternary period.






23. The areas of & in & or constituting a city.






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






25. The reserves of a valuable mineral commodity plus all other mineral deposits that may eventually become available & even those that are presumed to exist but have not yet been discovered and those that are not economically or technologically exploita






26. A large volume of dust-sized particles lifted high into the atmosphere.






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. A continuous well-defined mass of material of sufficient ore content to make extraction economically feasible. compare mineral deposit.






29. A system involving continuous interaction of the solid Earth & the atmosphere & the oceans and living things.






30. The area bordering a stream over which water spreads when the stream tops its channel banks.






31. Pluto is named after the Roman god of the Underworld. No longer considered a planet.






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






33. Temporary accumulations of sediments that collect between low and high water marks.






34. The formation & advance and retreat of glaciers and the results of these activities.






35. A pillar formed as a stalactite and stalagmite meet.






36. A small ice sheet.






37. The remains of an extremely massive star pulled into a small volume by the force of gravity.






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






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






40. A building that contains one or more telescopes.






41. A vent on the seafloor from which hydrothermal fluids are emitted. Upon mixing with seawater and cooling & the fluids precipitate a cloud of fine-grained sulfide minerals that resembles a cloud of black smoke.






42. Living parts of the environment that can renew or replace themselves.






43. Destruction of the ozone layer caused by the release of CFC's (chlorofluorocarbons) into the atmosphere which react chemically with ozone and break it down into different gases.






44. The color of a mineral in its powdered form obtained from scraping a sample on a ceramic plate






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






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






47. A glaciated valley now flooded by the sea.






48. A hydrocarbon (coal or petroleum) that can be extracted from the Earth for use as a fuel. Fossil fuels are non-renewable energy sources.






49. The perpendicular or very steep descent of a stream.






50. 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.







Sorry!:) No result found.

Can you answer 50 questions in 15 minutes?


Let me suggest you:

Browse all subjects

Browse all tests

Most popular tests



Major Subjects

Tests & Exams


AP
CLEP
DSST
GRE
SAT
GMAT

Browse all subjects

Browse all tests

Most popular tests