Test your basic knowledge |

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 consumer that eats only plants






2. The mating of animals in zoos or wildlife preserves






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






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






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






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






7. The series of changes that occur in an area where no soil or organisms exist






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






9. A region that has many different types of organism is described as having a high level of this






10. Using public transportation






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






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






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






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






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






16. Chemicals that causes harm to embryos and fetuses






17. Help improve the standard of living for residents






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






19. Can result in a decrease of property damage






20. The reason why tigers living in warmer climates have thinner fur than tigers living in cool climates






21. Resulted in suppression of all forest fires


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






23. The largest population that an area can support






24. A disease that has appeared in the human population for the first time or that has existed for a while but is increasing rapidly and spreading around the world






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






26. Bumps on the roots of certain plants






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






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






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






30. Rising sea level






31. Pollution from a factory near your school






32. One way zoos and aquariums help increase wildlife populations






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






34. Burning fossil fuels






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






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






37. Are carefully controlled






38. By increasing the need for people to drive






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






40. Shift of population from countryside to cities






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






42. The pattern of overlapping food chains in an ecosystem






43. The role of an organism in its habitat - or how it makes its living






44. A living part of an organism's habitat






45. Provide wood






46. Illegal killing or removal of wildlife from their habitats






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






48. Moving into a population






49. The highest level of biodiversity






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