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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. Type of graph most often used for categorical data






2. The variable that you manipulate






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






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






5. An organism that breaks down wastes and dead organisms






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






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






8. A material that cannot be recycled or reused






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






10. Something that breaks down into soil






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






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






13. A group of land ecosystems with similar climates and organisms






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






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






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






17. Leaving a population






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






19. All the different populations that live together in an area






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






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






22. A consumer that eats only plants






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






24. The series of predictable changes that occur in a community over time






25. A consumer that eats only animals






26. The amount of food production in a given area






27. Anything that harms an organism






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






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






30. The largest population that an area can support






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






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






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






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






35. The number of different species in an area






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. Water stored in underground layers of soil and rock






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






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






40. Heat from the Earth's interior






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






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






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






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






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






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






47. The practice of reducing energy use






48. The group that does not receive the experimental treatment.






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






50. The number of different species in a given area