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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. A usually triangular alluvial deposit at the mouth of a river.






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






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






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






5. 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.






6. The A layer of soil is often referred to as topsoil and is most important for plant growth.






7. To convert or change into a vapor.






8. 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






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






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






11. The more or less constant winds blowing in horizontal directions over the Earth's surface - as part of Hadley cells.






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






13. Organisms that reproduce later in life - produce fewer offspring - and devote significant time and energy to the nurturing of their offspring.






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






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






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






17. The phenomenon whereby the Earth's atmosphere traps solar radiation - caused by the presence in the atmosphere of gases such as carbon dioxide - water vapor - and methane that allow incoming sunlight to pass through - but absorb heat radiated back fr






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






19. The least pure coal.






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






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






22. Nets that are dragged through the water and indiscriminately catch everything in their path.






23. A region of the ocean near the equator - characterized by calms - light winds - or squalls.






24. The cleanest-burning coal; almost pure carbon.






25. 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.






26. The broad category under which selective cutting and shelter-wood cutting fall; selective deforestation.






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






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






29. 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






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






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






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






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






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






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






36. 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.






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






38. 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.






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






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






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






42. When ecological succession begins in a virtually lifeless area - such as the area behind a moving glacier.






43. The area or environment where an organism or ecological community normally lives or occurs.






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






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






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






47. 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.






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






49. A method of supplying irrigation water through tubes that literally drip water onto the soil at the base of each plant.






50. The process of fusing two nuclei.






Can you answer 50 questions in 15 minutes?



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