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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 process of fusing two nuclei.






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






3. The edges of tectonic plates.






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






5. States that matter can neither be created nor destroyed.






6. Using strategies to reduce the amount of risk (the degree of likelihood that a person will become ill upon exposure to a toxin or pathogen).






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






8. Organisms that are capable of interbreeding with one another and incapable of breeding with other species.






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






10. When mature trees are cut over a period of time (usually10 -20 years); this leaves mature trees - which can reseed the forest - in place.






11. Non-moving sources of pollution - such as factories.






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






13. When physically treated sewage water is passed into a settling tank - where suspended solids settle out as sludge; chemically treated polymers may be added to help the suspended solids separate and settle out.






14. 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






15. An organism that cannot synthesize its own food and is dependent on complex organic substances for nutrition.






16. Air currents caused by the vertical movement of air due to atmospheric heating and cooling.






17. The amount of the Earth's surface that's necessary to supply the needs of - and dispose of the waste from a particular population.






18. A hydrocarbon that forms as sediments are buried and pressurized.






19. A specific location from which pollution is released; an example of a point source location is a factory where wood is being burned.






20. Pertaining to factors or things that are separate and independent from living things; nonliving.






21. When a species occupies a smaller niche than it would in the absence of competition.






22. To convert or change into a vapor.






23. Acid rain - acid hail - acid snow; all of which occur as a result of pollution in the atmosphere.






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






25. A symbiotic relationship in which both species benefit.






26. The raising of fish and other aquatic species in captivity for harvest.






27. Graphical representations of populations' ages.






28. An organism such as a bacterium or protozoan - that obtains its nourishment through the oxidation of inorganic chemical compounds - as opposed to photosynthesis.






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






30. An intensification of the Greenhouse Effect due to the increased presence of heat-trapping gases in the atmosphere.






31. The day-to-day use of environmental resources as food - clothing - and housing.






32. The biological treatment of wastewater in order to continue to remove biodegradable waste.






33. The place where two plates abut each other.






34. A cooling of the ocean surface off the western coast of South America - occurring periodically every 4 to 12 years and affecting Pacific and other weather patterns.






35. An introduced - normative species.






36. Any compound that releases hydrogen ions when dissolved in water. Also - a water solution that contains a surplus of hydrogen ions.






37. A long - relatively narrow island running parallel to the mainland-built up by the action of waves and currents and serving to protect the coast from erosion by surf and tidal surges.






38. When materials - such as plastic or aluminum - are used to rebuild the same product. An example of this is the use of the aluminum from aluminum cans to produce more aluminum cans.






39. The degree to which a substance is biologically harmful.






40. The solids that remain after the secondary treatment of sewage.






41. The least pure coal.






42. Close - prolonged associations between two or more different organisms of different species that may - but do not necessarily benefit the members.






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






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






45. A layer of soil.






46. An animal that only consumes other animals.






47. 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.






48. The result of vibrations (often due to plate movements) deep in the Earth that release energy. They often occur as two plates slide past one another at a transform boundary.






49. Any substance than is inhaled - ingested - or absorbed at dosages sufficient to damage a living organism.






50. 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.







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