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






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






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






4. The least pure coal.






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






6. 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.






7. Any other species of fish - mammals - or birds that are caught that are not the target organism.






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






9. Biotic and abiotic natural ecosystems.






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






11. Graphical representations of populations' ages.






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






13. An area in which a particular mineral is concentrated - mining -the excavation of the Earth for the purpose of extracting ore or minerals.






14. 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.






15. The process in green plants and certain other organisms by which carbohydrates are synthesized from carbon dioxide and water using light as an energy source. Most forms of photosynthesis release oxygen as a byproduct.






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






17. 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.






18. Species that originate and live - or occur naturally - in an area or environment.






19. The layer of the Earth between the crust and the core.






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






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






22. 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.






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






24. The amount of sugar that the plants produce in photosynthesis and subtracting from it the amount of energy the plants need for growth maintenance - repair - and reproduction.






25. 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.






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






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






28. The result of a pathogen invading a body.






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






30. Organisms that consume primary consumers.






31. 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.






32. 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.






33. The process in which soil bacteria convert ammonium (NH4+) to a form that can be used by plants; nitrate - or NO3.






34. A symbiotic relationship in which one member is helped by the association and the other is harmed.






35. Refers to when farmers plant seeds without using a plow to turn the soil.






36. The management of forest plantations for the purpose of harvesting timber.






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






38. A cyclonic storm having winds ranging from approximately 48 to 121 km (30 to 75 miles) per hour.






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






40. The number of individuals of a population that inhabit a certain unit of land or water area.






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






42. The total sum of a species' use of the biotic and abiotic resources in its environment.






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






44. 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).






45. The amount of time it takes for half of a radioactive sample to disappear.






46. Countries that have a renewable annual water supply of about 1 -000 -2 -000 m3 per person.






47. The form petroleum takes when in the ground.






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






49. 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.






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






Can you answer 50 questions in 15 minutes?



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