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DSST Environmental Science - 2

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 organism that obtains energy by feeding on the other organisms






2. Shift of population from countryside to cities






3. A relationship between two species in which both species benefit






4. Causes a cooling effect

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5. Viruses - bacteria and other organisms in the environment that harm human health






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






7. The form of transportation that uses the most energy per passenger mile






8. Moving into a population






9. The amount of replacement is equal to the amount harvested






10. Deals with biological hazards






11. A consumer that eats only animals






12. Sikhote-Alin mountains and the Siberian tigers living there are separated from other mountains by this






13. A form of decision-making concerned with the allocation and conservation of natural resources






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






15. Loud noises in the air like jack hammers - loud car stereos - etc...






16. The amount of carbon dioxide emissions for which an individual or group is responsible






17. An organism that is killed and eaten by another organism






18. The disappearance of a particular population from a given area - but not from the entire species globally






19. The struggle between organisms to survive as they attempt to use the same limited resource






20. Cooking oil - fuel - and medicines






21. Help improve the standard of living for residents






22. An example of a method for managing whole ecosystems and habitats






23. A natural pattern in which species diversity generally increases toward the equator






24. Amount of land each person uses






25. Have a greater sensitivity to environmental hazards than any other group






26. The number of different species in an area






27. The pattern of overlapping food chains in an ecosystem






28. Has the highest amount of species diversity






29. A species that is at risk of extinction






30. Water vapor and carbon dioxide that trap heat near the earth






31. This draws people from urban areas to rural areas






32. The study of the natural processes that occur in the environment and how humans can affect them






33. A virus or bacterium (organisms) that cause infectious diseases






34. A consumer that eats only plants






35. The most direct way in which biodiverstiy can provide a source of income






36. Refers to an increase in Earth's average surface temperature






37. Are carefully controlled






38. The organism that does the killing in a predation interaction






39. A relationship in which one organism lives on or in a host and harms it






40. Bumps on the roots of certain plants






41. The process of cutting down all the trees in an area at once






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






43. Anything in the environment that is used by people is called a natural resource






44. Sex - weight - and health issues






45. An area with a large population of valuable ocean organisms






46. Relieving a nation from repaying some of the money it owes other nations in exchange for protecting its biodiversity






47. A consumer that eats both plants and animals






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






49. The breaking of a habitat into smaller - isolated pieces






50. A close relationship between two species that benefits at least one of the species