Test your basic knowledge |

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 graph that uses dots to compare rate of change over time






2. The amount of food production in a given area






3. Moving into a population






4. Illegal killing or removal of wildlife from their habitats






5. An organism that breaks down wastes and dead organisms






6. The variable that you manipulate






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






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






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






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






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






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






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






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






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






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






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






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






19. The largest population that an area can support






20. The organism that the parasite lives in or on






21. The movement or organisms from one place to another






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






23. The degree of hotness or coldness of a body or environment






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






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






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






27. The rate of which a plant grows at






28. The practice of reducing energy use






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






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






31. Anything in the environment that is used by people






32. A consumer that eats only animals






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






34. Wheat -bairley -corn....carbohydrates






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






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






37. The number of different species in an area






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






39. A chart with bars






40. A nonliving part of an organism's habitat






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






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






43. A relationship in which both species benefit






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






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






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






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






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






49. Water stored in underground layers of soil and rock






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