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. Manage - protect and reintroduce threatened and endangered species






3. A consumer that eats only animals






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






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






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






7. Burning fossil fuels






8. Can result in a decrease of property damage






9. 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






10. Habitat change and fragmentation






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






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






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






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






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






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






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






20. The highest level of biodiversity






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






22. Provide wood






23. Taking in carbon dioxide from the atmosphere during photosynthesis






24. Increase the stability of an ecosystem






25. Chemicals that cause cancer






26. The loss of a natural habitat






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






28. A consumer that eats both plants and animals






29. Deals with biological hazards






30. Amount of land each person uses






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






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






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






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






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






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






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






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






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






40. Moving into a population






41. A natural pattern in which species diversity generally increases toward the equator






42. Organism that carries pathogens






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






44. The disappearance of all members of a species from Earth






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






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






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






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






49. The largest population that an area can support






50. An organism that can make its own food