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 development and introduction of new varieties of (mainly) wheat and rice that has increased yields per acre dramatically in countries since the 1960s.






2. A process in which an organism is exposed to a toxin at different concentrations - and the dosage that causes the death of the organism is recorded.






3. A nuclear reaction in which an atomic nucleus - especially a heavy nucleus such as an isotope of uranium - splits into fragments - usually two fragments of comparable mass - releasing from 100 million to several hundred million electron volts of ener






4. The point at which 50 percent of the test organisms show a negative effect from a toxin.






5. The number of children an average woman will bear during her lifetime; this information is based on an analysis of data from preceding years in the population in question.






6. Devices containing alkaline substances that precipitate out much of the sulfur dioxide from industrial plants.






7. 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.






8. The removal of all of the trees in an area.






9. Countries that have a renewable annual water supply of less than 1 -000 m3 per person.






10. 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.






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






12. When the signs and symptoms of an illness can be attributed to a specific infectious organism that resides in the building.






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






14. An opening in the Earth's crust through which molten lava - ash - and gases are ejected.






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






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






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






18. The part of the Earth and its atmosphere in which living organisms exist or that is capable of supporting life.






19. A species whose very presence contributes to an ecosystem's diversity and whose extinction would consequently lead to the extinction of other forms of life.






20. 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.






21. The capacity to do work.






22. An animal that only consumes other animals.






23. The process by which the concentration of toxic substances increases in each successive link in the food chain.






24. Is the practice of planting bands of different crops across a hillside.






25. The molten core of the Earth.






26. The process of soil particles being carried away by wind or water. Erosion moves the smaller particles first and hence degrades the soil to a coarser - sandier - stonier texture.






27. Land that's fit to be cultivated.






28. Sunlight.






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






30. Each of the feeding levels in a food chain.






31. Also known as transform faults - boundaries at which plates are moving past each other - sideways.






32. 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. ...






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






34. When an area of vegetation is cut down and burned before being planted with crops.






35. The value of natural resources.






36. The conversion of atmospheric nitrogen into compounds - such as ammonia - by natural agencies or various industrial processes.






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






38. Drilling a hole in the ground that's below the water table to hold waste.






39. 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.






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






41. Gave the EPA power to set emission standards for major sources of noise - including transportation - machinery - and construction.






42. When companies are allowed to buy permits that allow them a certain amount of discharge of substances into certain environmental outlets. If they can reduce their amount of discharge - they are allowed to sell the remaining portion of their permit to






43. An estimate of the amount of fossil fuel that can be obtained from reserve.






44. The bedrock - which lies below all of the other layers of soil - is referred to as the R horizon.






45. The random fluctuations in the frequency of the appearance of a gene in a small isolated population - presumably owing to chance - rather than natural selection.






46. When the majority of a building's occupants experience certain symptoms that vary with the amount of time spent in the building.






47. Any water that has been used by humans. This includes human sewage - water drained from showers - tubs - sinks - dishwashers - washing machines - water from industrial processes - and storm water runoff.






48. The process in which soil becomes saltier and saltier until - finally - the salt prevents the growth of plants. Salinization is caused by irrigation because salts brought in with the water remain in the soil as water evaporates.






49. Power generated using water.






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