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






2. Chemicals that cause cancer






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






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






5. Burning fossil fuels






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






7. Making direct measurements






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






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






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






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






12. An organism that breaks down wastes and dead organisms






13. The highest level of biodiversity






14. 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






15. A species that is at risk of extinction






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






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






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






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






20. Pollution from a factory near your school






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






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






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






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






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






26. The amount of replacement is equal to the amount harvested






27. Using public transportation






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






29. Has the highest amount of species diversity






30. The mating of animals in zoos or wildlife preserves






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






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






33. Amount of land each person uses






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






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






36. A consumer that eats only animals






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






38. Help improve the standard of living for residents






39. Contamination of land - water - or air






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






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






42. A consumer that eats only plants






43. Habitat change and fragmentation






44. Can result in a decrease of property damage






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






46. A consumer that eats both plants and animals






47. One way zoos and aquariums help increase wildlife populations






48. Cooking oil - fuel - and medicines






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






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