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 group of land ecosystems with similar climates and organisms






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






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






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






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






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






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






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






9. A species that could become endangered in the near future






10. Chemicals that causes harm to embryos and fetuses






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






12. Taking in carbon dioxide from the atmosphere during photosynthesis






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






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






15. Resulted in suppression of all forest fires

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16. Sex - weight - and health issues






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






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






19. One way zoos and aquariums help increase wildlife populations






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






21. Cooking oil - fuel - and medicines






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






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






24. An organism that breaks down wastes and dead organisms






25. Pollution from a factory near your school






26. A nonliving part of an organism's habitat






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






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






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






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






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






32. Bumps on the roots of certain plants






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






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






35. A consumer that eats both plants and animals






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






37. Burning fossil fuels






38. An organism that can make its own food






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






40. A species that is at risk of extinction






41. Shift of population from countryside to cities






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






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






44. 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






45. Contamination of land - water - or air






46. Are carefully controlled






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






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






49. Plan to establish an 8000 kilometer long strip of land to rejoin fragments of tiger habitat






50. A living part of an organism's habitat