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. Using public transportation






2. Fires that are set by humans






3. Has the highest amount of species diversity






4. Any substance that poses a chemical hazard






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






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






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






8. Cooking oil - fuel - and medicines






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






10. Organism that carries pathogens






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






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






13. The clearing of a forest and replacing it with another land use






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






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






16. The practice of protecting the environment






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






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






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






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






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






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






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






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






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






26. Help improve the standard of living for residents






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






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






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






30. By increasing the need for people to drive






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






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






33. An organism that obtains energy by feeding on the other organisms






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






35. The pattern of overlapping food chains in an ecosystem






36. Moving into a population






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






38. 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






39. A consumer that eats only plants






40. One way zoos and aquariums help increase wildlife populations






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






42. Sex - weight - and health issues






43. Taking in carbon dioxide from the atmosphere during photosynthesis






44. The number of different species in an area






45. Pollution from a factory near your school






46. A species that is at risk of extinction






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






48. A living part of an organism's habitat






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






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