Test your basic knowledge |

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. Fires that are set by humans






2. Resulted in suppression of all forest fires

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3. An organism that breaks down wastes and dead organisms






4. Help improve the standard of living for residents






5. The highest level of biodiversity






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






7. Shift of population from countryside to cities






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






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






10. The practice of protecting the environment






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






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






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






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






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






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






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






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






19. The mating of animals in zoos or wildlife preserves






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






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






22. The series of changes that occur in an area where no soil or organisms exist






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






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






25. This draws people from urban areas to rural areas






26. Making direct measurements






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






28. 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






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






30. Building up not out






31. Have a greater sensitivity to environmental hazards than any other group






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






33. Moving into a population






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






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






36. Causes a cooling effect

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






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






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






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






41. Provide wood






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






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






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






45. Chemicals that causes harm to embryos and fetuses






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






47. Deals with biological hazards






48. Sex - weight - and health issues






49. Habitat change and fragmentation






50. A consumer that eats only plants