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DSST Environmental Sciences Vocab

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






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






3. The first species to populate the area






4. The theory that increasing carbon dioxide in the atmosphere will raise Earth's average temperature






5. The largest population that an area can support






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






7. An environmental factor that causes a population to decrease






8. The study of the impact of humans on the environment






9. The study of how living and nonliving things interact






10. Evaluation of the short-term and long-term risks associated with a particular activity or hazard






11. In an experiment - the group of participants that recieves the manipulation






12. An energy rich substance (such as coal - oil - or natural gas) formed from the remains of organisms






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






14. A graph that highlights segments of a circle to show simple distribution patterns






15. The rate of which a plant grows at






16. People who survive by searching for wild plants and animals; always move in small groups






17. Something that breaks down into soil






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






19. Liphids - proteins - and carbohydrates






20. A nonliving part of an organism's habitat






21. Leaving a population






22. The practice of growing - breeding - and caring for plants and animals that are used for food - clothing - transportation - and other uses






23. Resources supplied by nature






24. A material that cannot be recycled or reused






25. The process of changing free nitrogen gas into a usable form






26. A study that compares the costs and benefits to society of providing a public good






27. Farmers who raise food and animals mainly to feed their own families






28. An interaction in which one organism kills and eats another






29. A graph that uses dots to compare rate of change over time






30. The variable that you manipulate






31. The trapping of heat near Earth's surface by certain gases (carbon dioxide - water vapor and other gases) in the atmosphere






32. The process of cutting down only some trees in area






33. Wheat -bairley -corn....carbohydrates






34. Illegal killing or removal of wildlife from their habitats






35. A close relationship between two species that benefits at least one of them






36. The condition in which human needs are met in such a way that a human population can survive indefinitely






37. A graph that uses line segments to show changes that occur over time






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






39. An organism's particular role - or how it makes its living






40. The organism that the parasite lives in or on






41. Mass destruction of most species






42. The effect of the IV






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






44. Flaw in design of procedure






45. The organism that benefits by living on or in a host






46. A measure of human demand on the Earth's ecosystems






47. The series of predictable changes that occur in a community over time






48. A living part of an organism's habitat






49. A group of land ecosystems with similar climates and organisms






50. Measure of quantity of food produced on a given area of land with limited inputs of energy and resources