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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 pattern of overlapping food chains in an ecosystem.






2. A consumer that eats both plants and animals






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






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






5. Countries with less productive economies and a lower quality of life






6. The community of organisms that live in a particular area along with their nonliving surroundings






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






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






9. A resource that is able to be reused - or can be replenished quickly






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






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






12. Capable of being broken down by bacteria or other decomposers






13. The largest population that an area can support






14. The typical weather pattern in an area over a long period of time






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






16. Struggle between organisms to survive in a habitat with limited resources






17. Something that breaks down into soil






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






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






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






21. An organism that obtains energy by feeding on other organisms






22. A relationship in which both species benefit






23. Countries with strong economies and a high quality of life






24. The degree of hotness or coldness of a body or environment






25. The first species to populate the area






26. The study of how living and nonliving things interact






27. A living part of an organism's habitat






28. Beginning of urban cities - switch from man power to fossil fuels - machinery and factories are prevalent






29. A chart with bars






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






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






32. The process in which the changes that make organisms better suited to their environments develop






33. All the different populations that live together in an area






34. The act of restricting your food intake (or your intake of particular foods)






35. The time when human begins first domesticated plants and animals and no longer relied entirely on hunting and gathering.






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






37. The introduction of pesticides and high-yield grains and better management during the 1960s and 1970s which greatly increased agricultural productivity






38. The effect of the IV






39. Situation in which people acting individually and in their own interest use up commonly available but limited resources - creating disaster for the entire community






40. Anything in the environment that is used by people






41. The practice of reducing energy use






42. Any form of water that falls to the Earth's surface






43. The organism that the parasite lives in or on






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






45. The number of different species in a given area






46. An organism that can make it's own food






47. Wheat -bairley -corn....carbohydrates






48. Leaving a population






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






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







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