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DSST Environmental Science - 2

Subjects : dsst, science
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. Trees - grass - crops - wetlands - water - building and pavements






2. Concentrations of toxicants can be greatly multiplied with each step up the food chain






3. A large area heavily populated like Miami - Florida or Toledo - Ohio






4. A relationship between two species in which one species benefits and the other is neither helped nor harmed






5. The form of transportation that uses the most energy per passenger mile






6. The amount of carbon dioxide emissions for which an individual or group is responsible






7. Bumps on the roots of certain plants






8. A behavior or physical characteristic that allows an organism to live successfully in its environment






9. The process of cutting down only some trees in an area






10. Watering crops

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11. A region that has many different types of organism is described as having a high level of this






12. The disappearance of all members of a species from Earth






13. Relieving a nation from repaying some of the money it owes other nations in exchange for protecting its biodiversity






14. An organism that can make its own food






15. An organism that obtains energy by feeding on the other organisms






16. The highest level of biodiversity






17. A living part of an organism's habitat






18. Rising sea level






19. A carnivore that feeds on the bodies of dead organisms






20. The pattern of overlapping food chains in an ecosystem






21. An example of a method for managing whole ecosystems and habitats






22. Anything in the environment that is used by people is called a natural resource






23. An environment that provides the things an organism needs to live - grow - and reproduce






24. The organism that does the killing in a predation interaction






25. A natural resource that is not replaced in a useful time frame






26. Deals with biological hazards






27. This draws people from urban areas to rural areas






28. Viruses - bacteria and other organisms in the environment that harm human health






29. All the members of one species in a particular area






30. The breaking of a habitat into smaller - isolated pieces






31. Taking in carbon dioxide from the atmosphere during photosynthesis






32. Have a greater sensitivity to environmental hazards than any other group






33. The amount of replacement is equal to the amount harvested






34. Shift of population from countryside to cities






35. Amount of land each person uses






36. A resource that is either always available or is naturally replaced in a relatively short time






37. Species that are carried to a new location by people






38. A disease that has appeared in the human population for the first time or that has existed for a while but is increasing rapidly and spreading around the world






39. Causes a cooling effect

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40. A species in danger of becoming extinct in the near future






41. Refers to an increase in Earth's average surface temperature






42. Moving into a population






43. Businesses are arranged in a long row along a roadway - with no main community






44. Cooking oil - fuel - and medicines






45. Any substance that poses a chemical hazard






46. The study of the natural processes that occur in the environment and how humans can affect them






47. Fires that are set by humans






48. The reason why tigers living in warmer climates have thinner fur than tigers living in cool climates






49. Contamination of land - water - or air






50. Are carefully controlled