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






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






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






4. Provide wood






5. Deals with biological hazards






6. A consumer that eats only plants






7. Contamination of land - water - or air






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






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






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






11. Watering crops


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






13. Using public transportation






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






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






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






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






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






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






20. Are carefully controlled






21. Sex - weight - and health issues






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






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






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






25. Making direct measurements






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






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






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






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






30. Cooking oil - fuel - and medicines






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






32. The loss of a natural habitat






33. Taking in carbon dioxide from the atmosphere during photosynthesis






34. Amount of land each person uses






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






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






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






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






39. Soil - fresh water - wild animals - and timber






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






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






42. A consumer that eats only animals






43. Chemicals that cause cancer






44. 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






45. Manage - protect and reintroduce threatened and endangered species






46. Illegal killing or removal of wildlife from their habitats






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






48. Pollution from a factory near your school






49. Habitat change and fragmentation






50. Increase the stability of an ecosystem