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






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






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






4. One way zoos and aquariums help increase wildlife populations






5. Burning fossil fuels






6. Building up not out






7. Moving into a population






8. The most effective way of preserving biodiversity by protecting whole ecosystems






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






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






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






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






13. An organism that breaks down wastes and dead organisms






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






15. Provide wood






16. Rising sea level






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






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






19. A virus or bacterium (organisms) that cause infectious diseases






20. An organism that can make its own food






21. A nonliving part of an organism's habitat






22. The reason why tigers living in warmer climates have thinner fur than tigers living in cool climates






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






24. Deals with biological hazards






25. Illegal killing or removal of wildlife from their habitats






26. Using public transportation






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






28. Are carefully controlled






29. The practice of protecting the environment






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






31. Can result in a decrease of property damage






32. The pattern of overlapping food chains in an ecosystem






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






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






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






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






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






38. The largest population that an area can support






39. Bumps on the roots of certain plants






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






41. Contamination of land - water - or air






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






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






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






45. Taking in carbon dioxide from the atmosphere during photosynthesis






46. A consumer that eats both plants and animals






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






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






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






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