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. 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.






2. The uppermost horizon of soil. It is primarily made up of organic material - including waste from organisms - the bodies of decomposing organisms - and live organisms.






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






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






5. The value of natural resources.






6. An organism that obtains organic food molecules without eating other organisms or substances derived from other organisms. autotrophs use energy from the sun or from the oxidation of inorganic substances to make organic molecules from inorganic ones.






7. 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. ...






8. The amount of energy that plants pass on to the community of herbivores in an ecosystem.






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






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






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






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






13. Organisms that consume primary consumers.






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






15. A fiscal policy that lowers taxes on income - including wages and profit - and raises taxes on consumption - particularly the unsustainable consumption of non-renewable resources.






16. Poor nutrition that results from an insufficient or poorly balanced diet.






17. Radioactive wastes that produce high levels of ionizing radiation.






18. The use of building materials - building placement - and design to passively collect solar energy that can be used to keep a building warm or cool.






19. 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.






20. When trees and crops are planted together - creating a mutualistic symbiotic relationship between them.






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






22. The gradual breakdown of rock into smaller and smaller particles - caused by natural chemical - physical - and biological factors.






23. To convert or change into a vapor.






24. Organisms in the first stages of succession.






25. 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.






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






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






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






29. Organisms that consume secondary consumers or other tertiary consumers.






30. A climate variation that takes place in the tropical Pacific about every three to seven years - for a duration of about one year.






31. This category includes organisms that consume producers (plants and algae).






32. The least pure coal.






33. A high-speed - meandering wind current - generally moving from a westerly direction at speeds often exceeding 400 km (250 miles) per hour at altitudes of 15 to 25 km (10 to 15 miles).






34. The process of fusing two nuclei.






35. The process in which plants absorb ammonium (NH3) - ammonia ions (NH4+) - and nitrate ions (NO3) through their roots.






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






37. The act or process of transpiring - or releasing water vapor - especially through the stomata of plant tissue or the pores of the skin.






38. 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.






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






40. 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.






41. The process by which - according to Darwin's theory of evolution - only the organisms best adapted to their environment tend to survive and transmit their genetic characteristics in increasing numbers to succeeding generations - while those less adap






42. Change in the genetic composition of a population during successive generations as a result of natural selection acting on the genetic variation among individuals and resulting in the development of new species.






43. The energy of motion.






44. The effect caused by a short exposure to a high level of toxin.






45. The capacity to do work.






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






47. Is equal to the number of deaths per 1 -000 members of the population in a year.






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






49. Radioactive wastes that produce low levels of ionizing radiation.






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