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






2. A consumer that eats both plants and animals






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






4. An organism that breaks down wastes and dead organisms






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






6. Rising sea level






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






8. Taking in carbon dioxide from the atmosphere during photosynthesis






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






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






11. All the members of one species in a particular area






12. The mating of animals in zoos or wildlife preserves






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






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






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






16. The largest population that an area can support






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






18. Watering crops

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






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






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






22. The loss of a natural habitat






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






24. The number of different species in an area






25. By increasing the need for people to drive






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






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






28. Organism that carries pathogens






29. Can result in a decrease of property damage






30. A species that is at risk of extinction






31. Habitat change and fragmentation






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






33. The highest level of biodiversity






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






35. Deals with biological hazards






36. Building up not out






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






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






39. A consumer that eats only animals






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






41. The breaking of a habitat into smaller - isolated pieces






42. Any substance that poses a chemical hazard






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






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






45. Illegal killing or removal of wildlife from their habitats






46. A nonliving part of an organism's habitat






47. Sex - weight - and health issues






48. Are carefully controlled






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






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