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. Shift of population from countryside to cities






2. 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






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






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






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






6. Chemicals that cause cancer






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






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






9. Resulted in suppression of all forest fires


10. Amount of land each person uses






11. The practice of protecting the environment






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






13. A consumer that eats only plants






14. Provide wood






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






16. The clearing of a forest and replacing it with another land use






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






18. A consumer that eats only animals






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






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






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






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






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






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






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






26. The highest level of biodiversity






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






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






29. Increase the stability of an ecosystem






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






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






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






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






34. The largest population that an area can support






35. Rising sea level






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






37. Illegal killing or removal of wildlife from their habitats






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






39. The mating of animals in zoos or wildlife preserves






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






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






42. Taking in carbon dioxide from the atmosphere during photosynthesis






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






44. An organism that can make its own food






45. Fires that are set by humans






46. Using public transportation






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






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






49. Burning fossil fuels






50. Causes a cooling effect