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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. A group of land ecosystems with similar climates and organisms






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






3. Heat from the Earth's interior






4. The first species to populate the area






5. A habitat in which the freshwater of a river meets the salt water of an ocean






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






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






8. Mass destruction of most species






9. A consumer that eats only animals






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






11. The number of different species in an area






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






13. Resources supplied by nature






14. The rate of which a plant grows at






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






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






17. Water stored in underground layers of soil and rock






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






19. A chart with bars






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






21. Something that does not completely break down into the soil






22. Possible to use again






23. A species that influences the survival of many others in an ecosystem






24. When a large fraction of the resource has been used up






25. Anything that harms an organism






26. A nonliving part of an organism's habitat






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






28. Anything in the environment that is used by people






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






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






31. Leaving a population






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






33. The variable that you manipulate






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






35. Mistake in following procedure






36. The process by which molecules of liquid absorb energy and change to gas






37. The organism that the parasite lives in or on






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






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






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






41. The movement or organisms from one place to another






42. The issue where humans don't take care of the Earth.






43. The practice of reducing energy use






44. Flaw in design of procedure






45. A severe shortage of food (as through crop failure) resulting in violent hunger and starvation and death






46. A living part of an organism's habitat






47. A resource that is not able to be reused - or cannot be replenished quickly






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






49. A grid that displays the data plotted in a chart.






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







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Can you answer 50 questions in 15 minutes?


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