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






2. The highest level of biodiversity






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






4. Pollution from a factory near your school






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






6. A living part of an organism's habitat






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






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






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






10. A nonliving part of an organism's habitat






11. Moving into a population






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






13. An organism that breaks down wastes and dead organisms






14. Fires that are set by humans






15. Watering crops






16. Has the highest amount of species diversity






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






18. A consumer that eats only plants






19. The loss of a natural habitat






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






21. The number of different species in an area






22. Can result in a decrease of property damage






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






24. The pattern of overlapping food chains in an ecosystem






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






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






27. Increase the stability of an ecosystem






28. Illegal killing or removal of wildlife from their habitats






29. Building up not out






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






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






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






33. The largest population that an area can support






34. An organism that can make its own food






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






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






37. Contamination of land - water - or air






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






39. Leaving a population






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






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






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






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






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






45. Deals with biological hazards






46. A consumer that eats both plants and animals






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






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






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






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