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. Watering crops


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






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






4. Businesses are arranged in a long row along a roadway - with no main community






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






6. The largest population that an area can support






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






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






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






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






11. A consumer that eats only plants






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






13. A nonliving part of an organism's habitat






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






15. Resulted in suppression of all forest fires


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






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






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






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






20. 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






21. Causes a cooling effect


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






23. Provide wood






24. Cooking oil - fuel - and medicines






25. The reason why tigers living in warmer climates have thinner fur than tigers living in cool climates






26. Using public transportation






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






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






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






30. Are carefully controlled






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






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






33. A resource that is either always available or is naturally replaced in a relatively short time






34. A natural pattern in which species diversity generally increases toward the equator






35. Manage - protect and reintroduce threatened and endangered species






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






37. Loud noises in the air like jack hammers - loud car stereos - etc...






38. The number of different species in an area






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






40. An area with a large population of valuable ocean organisms






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






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






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






44. Habitat change and fragmentation






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






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






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






48. Making direct measurements






49. An organism that breaks down wastes and dead organisms






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