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






2. The practice of reducing energy use






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






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






5. Possible to use again






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






7. A chart with bars






8. The amount of food production in a given area






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






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






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






12. Organism that is killed






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






14. A living part of an organism's habitat






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






16. A nonliving part of an organism's habitat






17. A relationship that involves one organism living on or inside another organism and harming it






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






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






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






21. A higer demand of that limited product the the price goes up






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






23. A relationship in which both species benefit






24. Resources supplied by nature






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






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






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






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






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






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






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






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






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






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






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






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






37. Organism that does the killing






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






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






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






41. An organism that breaks down wastes and dead organisms






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






43. A consumer that eats only plants






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






45. The rate of which a plant grows at






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






47. Mass destruction of most species






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






49. Leaving a population






50. Illegal killing or removal of wildlife from their habitats