Test your basic knowledge |

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. The practice of protecting the environment






2. A series of events in which one organism eats another and obtains energy






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






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






5. The series of changes that occur in an area where no soil or organisms exist






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






7. When fish are caught faster than they can breed - causing the populatio to decrease






8. 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






9. Cooking oil - fuel - and medicines






10. A group of organisms that are physically similar and can mate with each other and produce offspring that can also mate and reproduce






11. Illegal killing or removal of wildlife from their habitats






12. Deals with biological hazards






13. Has the highest amount of species diversity






14. An organism that can make its own food






15. Pollution from a factory near your school






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






17. The most direct way in which biodiverstiy can provide a source of income






18. Contamination of land - water - or air






19. Global phenomenon that has caused some organisms to move toward the poles and to higher altitude






20. The series of changes that occur in an area where the ecosystem has been disturbed - but where soil and organisms still exist






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






22. An organism that breaks down wastes and dead organisms






23. Help improve the standard of living for residents






24. Making direct measurements






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






26. Resulted in suppression of all forest fires

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27. The role of an organism in its habitat - or how it makes its living






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






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






30. A relationship between two species in which both species benefit






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






32. Rising sea level






33. A consumer that eats both plants and animals






34. Process of measuring the chance that an environmental hazard will cause harm






35. A species that could become endangered in the near future






36. The process of cutting down all the trees in an area at once






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






38. Leaving a population






39. A consumer that eats only plants






40. The number of different species in an area






41. Causes a cooling effect

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42. A natural pattern in which species diversity generally increases toward the equator






43. An amount of a renewable resource that can be harvested regularly without reducing the future supply






44. The clearing of a forest and replacing it with another land use






45. One way zoos and aquariums help increase wildlife populations






46. An area with a large population of valuable ocean organisms






47. A relationship in which one organism lives on or in a host and harms it






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






49. Moving into a population






50. Loud noises in the air like jack hammers - loud car stereos - etc...