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






2. By increasing the need for people to drive






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






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






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






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






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






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






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






10. A consumer that eats only plants






11. The largest population that an area can support






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






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






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






15. Pollution from a factory near your school






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






17. Leaving a population






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






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






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






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






22. Can result in a decrease of property damage






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






24. Moving into a population






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






26. A species that is at risk of extinction






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






28. Manage - protect and reintroduce threatened and endangered species






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






30. A living part of an organism's habitat






31. Any substance that poses a chemical hazard






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






33. The loss of a natural habitat






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






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






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






37. An organism that can make its own food






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






39. The pattern of overlapping food chains in an ecosystem






40. Contamination of land - water - or air






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






42. Taking in carbon dioxide from the atmosphere during photosynthesis






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






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






45. Habitat change and fragmentation






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






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






48. The highest level of biodiversity






49. Making direct measurements






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







Sorry!:) No result found.

Can you answer 50 questions in 15 minutes?


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