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 worldwide change in sea level & such as caused by melting glaciers.






2. The internal resistance to flow in a liquid.






3. A mound or ridge of sediment deposited by a glacier.






4. The green pigment in the cells of many plants that enables them to use sunlight to convert carbon dioxide and water into carbohydrates in the process called photosynthesis.






5. A flood that rises and falls very rapidly.






6. 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.






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






8. A large & basin-shaped volcanic depression & more or less circular in form. Typically steep-sided & found at the summit of a shield volcano.






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






10. A lake in an abandoned meander.






11. 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






12. 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.






13. The chronological sequence of units of Earth time.






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






15. An abandoned meander .






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






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






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






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






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






21. A guide to reading a map that typically contains distance scales & arrows indicating direction & and/or explanations of symbols used.






22. That portion of the Earth below the crust and reaching to about 2 &780 km & where a transition zone of about 100 km thickness separates it from the core.






23. 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.






24. Gases (primarily water and carbon dioxide & but also a variety of sulfur and nitrogen compounds and gaseous hydrocarbons) that trap the Sun's heat in the atmosphere.






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






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






27. Evidence in rock of the presence of past life & such as a dinosaur bone & an ancient clam shell & or the footprint of a long-extinct animal as well as life history artifacts.






28. Scratches & or small channels & gouged by glacier action. Occur on boulders & pebbles & and bedrock. Striations along bedrock indicate direction of ice movement.






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






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






31. 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.






32. 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.






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






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






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






36. The closest galaxy to the Milky way. It is approximately 2 million light-years away.






37. A process of erosion in which wind carries off particles of dust and sand.






38. Living on land.






39. (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.






40. A small & dust-bearing whirlwind.






41. Highly mafic igneous volcanic rock & typically fine-grained and dark in color; rough volcanic equivalent of gabbro. Basalt is the most abundant volcanic rock in the Earth's crust.






42. A layer of sedimentary rock; plural is strata.






43. A permeable region of rock or soil through which ground water can move.






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






45. A sea level change due to change in load on Earth's crust.






46. Where two plates collide to form mountains.






47. Verifying assessments made from satellite data by doing direct & 'on-the ground' measurements.






48. A coral reef separated from the mainland by a lagoon.






49. The attractive force between two objects; its magnitude depends on their masses and the distance between them.






50. 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