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






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






3. Increase the stability of an ecosystem






4. Illegal killing or removal of wildlife from their habitats






5. A species that is at risk of extinction






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






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






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






9. Has the highest amount of species diversity






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






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






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






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






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






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






16. Help improve the standard of living for residents






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






18. Using public transportation






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






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






21. The loss of a natural habitat






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






23. Loud noises in the air like jack hammers - loud car stereos - etc...






24. Manage - protect and reintroduce threatened and endangered species






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






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






27. Are carefully controlled






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






29. Leaving a population






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






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






32. Pollution from a factory near your school






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






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






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






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






37. Watering crops

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38. Fires that are set by humans






39. By increasing the need for people to drive






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






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






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






43. Taking in carbon dioxide from the atmosphere during photosynthesis






44. A consumer that eats both plants and animals






45. Bumps on the roots of certain plants






46. Rising sea level






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






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






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






50. The mating of animals in zoos or wildlife preserves