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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. Something that does not completely break down into the soil






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






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






4. A chart with bars






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






6. Anything in the environment that is used by people






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






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






9. Possible to use again






10. The practice of reducing energy use






11. A living part of an organism's habitat






12. An environmental factor that causes a population to decrease






13. A nonliving part of an organism's habitat






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






15. Organism that is killed






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






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






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






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






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






21. The study of how living and nonliving things interact






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






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






24. Mistake in following procedure






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






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






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






28. The first species to populate the area






29. Leaving a population






30. A consumer that eats only animals






31. Moving into a population






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






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






34. Anything that harms an organism






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






36. A group of organisms that are physically similar and can mate with each other and produce offspring that can also mate and reproduce






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






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






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






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






41. The organism that the parasite lives in or on






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






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






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






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






46. Something that breaks down into soil






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






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






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






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