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






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






3. Sex - weight - and health issues






4. A species that is at risk of extinction






5. Manage - protect and reintroduce threatened and endangered species






6. The loss of a natural habitat






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






8. Taking in carbon dioxide from the atmosphere during photosynthesis






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






10. The practice of protecting the environment






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






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






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






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






15. Contamination of land - water - or air






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






17. A consumer that eats only plants






18. Fires that are set by humans






19. Rising sea level






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






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






22. Deals with biological hazards






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






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






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






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






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






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






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






30. Amount of land each person uses






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






32. Chemicals that cause cancer






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






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






35. 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






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






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






38. A consumer that eats only animals






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






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






41. Illegal killing or removal of wildlife from their habitats






42. An organism that can make its own food






43. The mating of animals in zoos or wildlife preserves






44. Watering crops

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45. Burning fossil fuels






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






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






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






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






50. Any substance that poses a chemical hazard