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






2. The study of how living things interact with each other and their environment






3. The loss of a natural habitat






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






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






6. Species that are carried to a new location by people






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






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






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






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






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






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






13. Building up not out






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






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






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






17. The number of different species in an area






18. An amount of a renewable resource that can be harvested regularly without reducing the future supply






19. A large area heavily populated like Miami - Florida or Toledo - Ohio






20. The process of cutting down only some trees in an area






21. By increasing the need for people to drive






22. Soil - fresh water - wild animals - and timber






23. Are carefully controlled






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






25. The mating of animals in zoos or wildlife preserves






26. Chemical hazard that was once found in paint - young children are frequently tested for this






27. Global phenomenon that has caused some organisms to move toward the poles and to higher altitude






28. When fish are caught faster than they can breed - causing the populatio to decrease






29. A consumer that eats both plants and animals






30. Increase the stability of an ecosystem






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






32. Plan to establish an 8000 kilometer long strip of land to rejoin fragments of tiger habitat






33. Rising sea level






34. Businesses are arranged in a long row along a roadway - with no main community






35. Resulted in suppression of all forest fires

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36. Illegal killing or removal of wildlife from their habitats






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






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






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






40. The pattern of overlapping food chains in an ecosystem






41. The highest level of biodiversity






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






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






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






45. The practice of protecting the environment






46. This draws people from urban areas to rural areas






47. Sex - weight - and health issues






48. Concentrations of toxicants can be greatly multiplied with each step up the food chain






49. Causes a cooling effect

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50. A living part of an organism's habitat