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






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






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






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






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






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






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






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






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






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






11. Mass destruction of most species






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






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






14. A nonliving part of an organism's habitat






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






16. Something that breaks down into soil






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






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






19. Leaving a population






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






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






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






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






24. The pattern of overlapping food chains in an ecosystem.






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






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






27. Type of graph most often used for categorical data






28. The first species to populate the area






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






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






31. A living part of an organism's habitat






32. Resources supplied by nature






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






34. Anything in the environment that is used by people






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






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






37. The number of different species in an area






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






39. The largest population that an area can support






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






41. Flaw in design of procedure






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






43. A relationship in which both species benefit






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






45. The organism that the parasite lives in or on






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






47. A chart with bars






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






49. An environmental factor that causes a population to decrease






50. A material that cannot be recycled or reused