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






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






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






4. Leaving a population






5. The number of different species in an area






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






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






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






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






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






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






12. The study of how living and nonliving things interact






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






14. An environmental factor that causes a population to decrease






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






16. Heat from the Earth's interior






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






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






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






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






21. A consumer that eats only plants






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






23. The amount of food production in a given area






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






25. The rate of which a plant grows at






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






27. Possible to use again






28. The practice of reducing energy use






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






30. Water stored in underground layers of soil and rock






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






32. The effect of the IV






33. Liphids - proteins - and carbohydrates






34. A living part of an organism's habitat






35. Something that breaks down into soil






36. Organism that is killed






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






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






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






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






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






42. Anything in the environment that is used by people






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






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






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






46. The variable that you manipulate






47. The organism that the parasite lives in or on






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






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






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