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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. Trees - grass - crops - wetlands - water - building and pavements






2. A natural resource that is not replaced in a useful time frame






3. Has the highest amount of species diversity






4. The largest population that an area can support






5. The practice of protecting the environment






6. Habitat change and fragmentation






7. An organism that breaks down wastes and dead organisms






8. Taking in carbon dioxide from the atmosphere during photosynthesis






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






10. Increase the stability of an ecosystem






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






12. Provide wood






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






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






15. A consumer that eats only plants






16. Are carefully controlled






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






18. Sex - weight - and health issues






19. Chemical hazard that was once found in paint - young children are frequently tested for this






20. Pollution from a factory near your school






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






22. Causes a cooling effect

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23. The highest level of biodiversity






24. One way zoos and aquariums help increase wildlife populations






25. A nonliving part of an organism's habitat






26. The study of the natural processes that occur in the environment and how humans can affect them






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






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






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






30. Any substance that poses a chemical hazard






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






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






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






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






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






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






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






38. Deals with biological hazards






39. Moving into a population






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






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






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






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






44. A consumer that eats only animals






45. Cooking oil - fuel - and medicines






46. Burning fossil fuels






47. Organism that carries pathogens






48. Shift of population from countryside to cities






49. A living part of an organism's habitat






50. An example of a method for managing whole ecosystems and habitats