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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. Any process that breaks rock down into smaller pieces without changing the chemistry of the rock; typically wind and water.






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






3. Power generated using water.






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






5. A soil horizon; B receives the minerals and organic materials that are leached out of the A horizon.






6. 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.






7. The maximum population size that can be supported by the available resources in a region.






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






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






10. The value of natural resources.






11. The form petroleum takes when in the ground.






12. An organism that must obtain food energy from secondary sources - for example - by eating plant or animal matter.






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






14. In tectonic plates - the site at which an oceanic plate is sliding under a continental plate.






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






16. A severe tropical cyclone originating in the equatorial regions of the Atlantic Ocean or Caribbean Sea or eastern regions of the Pacific Ocean - traveling north - northwest - or northeast from its point of origin - and usually involving heavy rains.






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






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






19. 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.






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






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






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






23. The thinning of the ozone layer over Antarctica (and to some extent - over the Arctic).






24. Pollution that does not have a specific point of release - open -loop recycling -when materials are reused to form new products.






25. 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.






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






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






28. Resources that are often formed by very slow geologic processes - so we consider them incapable of being regenerated within the realm of human existence.






29. Organisms that consume both producers and primary consumers.






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






31. The unit used to describe the volume of fossil fuels.






32. Formed from populations of different species occupying the same geographic area.






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






34. To convert or change into a vapor.






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






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






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






38. The structure obtained if we organize the amount of energy contained in producers and consumers in an ecosystem by kilocalories per square meter - from largest to smallest.






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






40. The process of fusing two nuclei.






41. The edges of tectonic plates.






42. Occurs when infection causes a change in the state of health.






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






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






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






46. The region draining into river system or other body of water.






47. Bacteria - virus - or other microorganisms that can cause disease.






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






49. A model that's used to predict population trends based on the birth and death rates as well as economic status of a population.






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







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