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






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






3. Fires that are set by humans






4. A nonliving part of an organism's habitat






5. Trees - grass - crops - wetlands - water - building and pavements






6. Can result in a decrease of property damage






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






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






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






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






11. Bumps on the roots of certain plants






12. Has the highest amount of species diversity






13. The probability that a hazard will cause a harmful response






14. The pattern of overlapping food chains in an ecosystem






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






16. One way zoos and aquariums help increase wildlife populations






17. Habitat change and fragmentation






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






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






20. The largest population that an area can support






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






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






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






24. A species that is at risk of extinction






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






26. Deals with biological hazards






27. A consumer that eats only animals






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






29. Pollution from a factory near your school






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






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






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






33. An organism that breaks down wastes and dead organisms






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






35. Help improve the standard of living for residents






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






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






38. Amount of land each person uses






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






40. This draws people from urban areas to rural areas






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






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






43. A living part of an organism's habitat






44. Resulted in suppression of all forest fires


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






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






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






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






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






50. Organism that carries pathogens