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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 higer demand of that limited product the the price goes up






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






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






4. The number of different species in a given area






5. Wheat -bairley -corn....carbohydrates






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






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






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






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






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






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






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






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






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






15. The variable that you manipulate






16. Water stored in underground layers of soil and rock






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






18. Mass destruction of most species






19. A material that cannot be recycled or reused






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






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






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






23. The movement or organisms from one place to another






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






25. Possible to use again






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






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






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






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






30. An environmental factor that causes a population to decrease






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






32. Organism that is killed






33. The study of how living and nonliving things interact






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






35. Rice - corn - potatos - wheat - soy beans






36. Flaw in design of procedure






37. The continuous process by which water moves from Earth's surface to the atmosphere and back






38. Behaviors and physical characteristics of species that allow them to live successfully in their environment






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






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






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






42. A state of poor nutrition; lacking enough calories or variety in diet






43. Leaving a population






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






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






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






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






48. The process by which a gas changes to a liquid






49. An organism that breaks down wastes and dead organisms






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