Test your basic knowledge |

AP Environmental Science

Subjects : science, ap
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. Any substance that has an LD50 - of 50 mg or less per kg of body weight.






2. The least pure coal.






3. The number of children a couple must have in order to replace themselves in a population.






4. The third purest form of coal.






5. An underground layer of porous rock - sand - or other material that allows the movement of water between layers of nonporous rock or clay. Aquifers are frequently tapped for wells.






6. The process of fusing two nuclei.






7. A waste product produced by the burning of coal.






8. Also known as plantations - these are planted and managed tracts of trees of the same age that are harvested for commercial use.






9. The uppermost horizon of soil. It is primarily made up of organic material - including waste from organisms - the bodies of decomposing organisms - and live organisms.






10. The number of individuals of a population that inhabit a certain unit of land or water area.






11. When water rights are given to those who have historically used the water in a certain area.






12. The process of burning.






13. Smog resulting from emissions from industry and other sources of gases produced by the burning of fossil fuels.






14. Says that the entropy (disorder) of the universe is increasing. One corollary of the Second Law of thermodynamics is the concept that - in most energy transformations - a significant fraction of energy is lost to the universe as heat.






15. An influential theory that concerns the long - term rate of conventional oil (and other fossil fuel) extraction and depletion. It predicts that future world oil production will soon reach a peak and then rapidly decline.






16. The dark - crumbly - nutrient-rich material that results from the decomposition of organic material.






17. A tank filled with aerobic bacteria that's used to treat sewage.






18. The coarsest soil - with particles 0.05 -2.0 mm in diameter.






19. The process in which plants absorb ammonium (NH3) - ammonia ions (NH4+) - and nitrate ions (NO3) through their roots.






20. A bloom of dinoflagellates that causes reddish discoloration of coastal ocean waters. Certain dinoflagellates of the genus Gonyamfox produce toxins that kill fish and contaminate shellfish.






21. The right - as to fishing or to the use of a riverbed - of one who owns riparian land (the land adjacent to a river or stream).






22. The day-to-day variations in temperature - air pressure - wind - humidity - and precipitation mediated by the atmosphere in a given region.






23. The liquid that percolates to the bottom of a landfill.






24. When grass is consumed by animals at a faster rate than it can regrow.






25. The cultivation of a single crop on a farm or in a region or country; a single - homogeneous culture without diversity or dissension.






26. An area in which a particular mineral is concentrated - mining -the excavation of the Earth for the purpose of extracting ore or minerals.






27. One that has never been cut; these forests have not been seriously disturbed for several hundred years.






28. The rocks and Earth that is removed when mining for a commercially valuable mineral resource.






29. The management of forest plantations for the purpose of harvesting timber.






30. The use of devices - such as solar panels - to collect - focus - transport - or store solar energy.






31. The carrier organism through which pathogens can attack.






32. A platinum - coated device that oxidizes most of the VOCs and some of the CO that would otherwise be emitted in exhaust - converting them to CO2.






33. Refers to when farmers plant seeds without using a plow to turn the soil.






34. The part of the mantle that lies just below the lithosphere.






35. Any weathering that's caused by the activities of living organisms.






36. The layer of the Earth between the crust and the core.






37. The process that occurs when two different species in a region compete and the better adapted species wins.






38. The place where two plates abut each other.






39. A process in which rows of crops are plowed across the hillside; this prevents the erosion that can occur when rows are cut up and down on a slope. ...






40. The removal of select trees in an area; this leaves the majority of the habitat in place and has less of an impact on the ecosystem.






41. A layer in a large body of water - such as a lake - that sharply separates regions differing in temperature - so that the temperature gradient across the layer is abrupt.






42. Involves the sinking of shafts to reach underground deposits. In this type of mining - networks of tunnels are dug or blasted and humans enter these tunnels in order to manually retrieve the coal.






43. The process by which specialized bacteria (mostly anaerobic bacteria) convert ammonia to NOy NO2 - and N2 and release it back to the atmosphere.






44. An organism that obtains organic food molecules without eating other organisms or substances derived from other organisms. autotrophs use energy from the sun or from the oxidation of inorganic substances to make organic molecules from inorganic ones.






45. Graphical representations of populations' ages.






46. The maintenance of a species or ecosystem in order to ensure their perpetuation - with no concern as to their potential monetary value






47. The result of graphing a dose-response analysis.






48. The amount of sugar that the plants produce in photosynthesis and subtracting from it the amount of energy the plants need for growth maintenance - repair - and reproduction.






49. The part of the wide lower course of a river where its current is met by the tides.






50. The gradual breakdown of rock into smaller and smaller particles - caused by natural chemical - physical - and biological factors.