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. The number of different species in an area






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






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






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






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






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






7. The first species to populate the area






8. A living part of an organism's habitat






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






10. A chart with bars






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






12. The variable that you manipulate






13. Moving into a population






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






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






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






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






18. The rate of which a plant grows at






19. Leaving a population






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






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






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






23. A relationship in which both species benefit






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






25. Possible to use again






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






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






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






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






30. An environmental factor that causes a population to decrease






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






32. Organism that does the killing






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






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






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






36. Water stored in underground layers of soil and rock






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






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






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






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






41. All the members of one species in a particular area






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






43. Illegal killing or removal of wildlife from their habitats






44. The organism that the parasite lives in or on






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






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






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






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






49. Resources supplied by nature






50. Mass destruction of most species