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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. Leaving a population






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






3. Making direct measurements






4. An organism that breaks down wastes and dead organisms






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






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






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. Chemicals that causes harm to embryos and fetuses






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






10. The loss of a natural habitat






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






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






13. Amount of land each person uses






14. The most direct way in which biodiverstiy can provide a source of income






15. Increase the stability of an ecosystem






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






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






18. The largest population that an area can support






19. A consumer that eats both plants and animals






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






21. A nonliving part of an organism's habitat






22. The series of changes that occur in an area where the ecosystem has been disturbed - but where soil and organisms still exist






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






24. Habitat change and fragmentation






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






26. The amount of carbon dioxide emissions for which an individual or group is responsible






27. Moving into a population






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






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






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






31. Resulted in suppression of all forest fires

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






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






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






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






36. Organism that carries pathogens






37. A species that is at risk of extinction






38. The process of cutting down all the trees in an area at once






39. The pattern of overlapping food chains in an ecosystem






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






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






42. Contamination of land - water - or air






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






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






45. By increasing the need for people to drive






46. Provide wood






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






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






49. An amount of a renewable resource that can be harvested regularly without reducing the future supply






50. A living part of an organism's habitat