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. The finest soil - made up of particles that are less than 0.002 mm in diameter.






2. A fishing technique in which the ocean floor is literally scraped by heavy nets that smash everything in their path.






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






4. The point at which 50 percent of the test organisms die from a toxin.






5. Biotic and abiotic natural ecosystems.






6. The molten core of the Earth.






7. Being extinct or the process of becoming extinct.






8. The process in which animals (and plants!) breathe and give off carbon dioxide from cellular metabolism.






9. A climate variation that takes place in the tropical Pacific about every three to seven years - for a duration of about one year.






10. When each family in a community grows crops for themselves and rely on animal and human labor to plant and harvest crops.






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






12. The energy of motion.






13. Organisms in the first stages of succession.






14. When the size of an organism's natural habitat is reduced - or when development occurs that isolates a habitat.






15. A process in which cold - often nutrient-rich - waters from the ocean depths rise to the surface.






16. Ozone that exists in the trophosphere.






17. Any waste that poses a danger to human health; it must be dealt with in a different way from other types of waste.






18. A plate boundary where two plates are moving toward each other.






19. The amount that the population would grow if there were unlimited resources in its environment.






20. The condition in which - at ecosystem boundaries - there is greater species diversity and biological density than there is in the heart of ecological communities.






21. Any substance that has an LD50 - of 50 mg or less per kg of body weight.






22. A complex of interrelated food chains in an ecological community.






23. 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).






24. 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. ...






25. The water from which a river rises; a source.






26. Any noise that causes stress or has the potential to damage human health.






27. A group of organisms of the same species that live in the same area.






28. The outer part of the Earth - consisting of the crust and upper mantle - approximately 100 km (62 miles) thick.






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






30. Graphical representations of populations' ages.






31. Can consist of hazardous waste - industrial solid waste - or municipal waste. Many types of solid waste provide a threat to human health and the environment.






32. The form petroleum takes when in the ground.






33. The accumulation of a substance - such as a toxic chemical - in various tissues of a living organism.






34. A soil horizon - horizon C is made up of larger pieces of rock that have not undergone much weathering.






35. Organisms that reproduce early in life and often and have a high capacity for reproductive growth.






36. A soil horizon; the layer below the O layer is called the A layer. The A layer is formed of weathered rock - with some organic material; often referred to as topsoil.






37. The carrier organism through which pathogens can attack.






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






39. 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.






40. 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.






41. 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.






42. The third purest form of coal.






43. When soil becomes water-logged and then dries out - and salt forms a layer on its surface.






44. An erosion-resistant marine ridge or mound consisting chiefly of compacted coral together with algal material and biochemically deposited magnesium and calcium carbonates.






45. A stable - mature community in a successive series that has reached equilibrium after having evolved through stages and adapted to its environment.






46. 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.






47. The removal of trees for agricultural purposes or purposes of exportation.






48. Bacteria or fungi that absorb nutrients from nonliving organic matter like plant material - the wastes of living organisms - and corpses. They convert these materials into inorganic forms.






49. An effect that results from long -term exposure to low levels of toxin.






50. Piles of gangue - which is the waste material that results from mining.