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






2. Fires that are set by humans






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






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






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






6. An organism that can make its own food






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






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






9. Chemicals that causes harm to embryos and fetuses






10. Taking in carbon dioxide from the atmosphere during photosynthesis






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






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






13. Organism that carries pathogens






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






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






16. Can result in a decrease of property damage






17. The mating of animals in zoos or wildlife preserves






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






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






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






21. Anything in the environment that is used by people is called a natural resource






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






23. Pollution from a factory near your school






24. The loss of a natural habitat






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






26. One way zoos and aquariums help increase wildlife populations






27. Has the highest amount of species diversity






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






29. Any substance that poses a chemical hazard






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






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






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






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






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






35. Sex - weight - and health issues






36. Bumps on the roots of certain plants






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






38. A species that is at risk of extinction






39. A region that has many different types of organism is described as having a high level of this






40. Are carefully controlled






41. The most effective way of preserving biodiversity by protecting whole ecosystems






42. Relieving a nation from repaying some of the money it owes other nations in exchange for protecting its biodiversity






43. When fish are caught faster than they can breed - causing the populatio to decrease






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






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






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






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






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






49. By increasing the need for people to drive






50. An organism that breaks down wastes and dead organisms