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. One way zoos and aquariums help increase wildlife populations






2. A consumer that eats only plants






3. Fires that are set by humans






4. Deals with biological hazards






5. Sex - weight - and health issues






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






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






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






9. Burning fossil fuels






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






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






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






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






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






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






16. An organism that breaks down wastes and dead organisms






17. Has the highest amount of species diversity






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






19. Help improve the standard of living for residents






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






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






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






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






24. The largest population that an area can support






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






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






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






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






29. Using public transportation






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






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






32. Any substance that poses a chemical hazard






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






34. Contamination of land - water - or air






35. Building up not out






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






37. The number of different species in an area






38. Cooking oil - fuel - and medicines






39. Pollution from a factory near your school






40. Moving into a population






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






42. Increase the stability of an ecosystem






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






44. Chemicals that cause cancer






45. Are carefully controlled






46. Making direct measurements






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






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






49. Illegal killing or removal of wildlife from their habitats






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