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






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






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






4. Using public transportation






5. The pattern of overlapping food chains in an ecosystem






6. A consumer that eats both plants and animals






7. Shift of population from countryside to cities






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






9. Process of measuring the chance that an environmental hazard will cause harm






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






11. Building up not out






12. Has the highest amount of species diversity






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






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






15. Transportation systems - communications systems - water services - power supplies - and schools






16. A behavior or physical characteristic that allows an organism to live successfully in its environment






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






18. Amount of land each person uses






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






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






21. Any substance that poses a chemical hazard






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






23. Making direct measurements






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






25. Can result in a decrease of property damage






26. The most effective way of preserving biodiversity by protecting whole ecosystems






27. A consumer that eats only animals






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






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






30. Energy from the sun would be reflected back into space






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






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






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






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






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






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






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






38. By increasing the need for people to drive






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






40. A living part of an organism's habitat






41. Moving into a population






42. Illegal killing or removal of wildlife from their habitats






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






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






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






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






47. An organism that breaks down wastes and dead organisms






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






49. Land that is sparsely populated and has few buildings or roads






50. One way zoos and aquariums help increase wildlife populations