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






2. A nonliving part of an organism's habitat






3. Watering crops

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






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






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






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






8. Taking in carbon dioxide from the atmosphere during photosynthesis






9. Making direct measurements






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






11. Increase the stability of an ecosystem






12. Resulted in suppression of all forest fires

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






14. Manage - protect and reintroduce threatened and endangered species






15. Help improve the standard of living for residents






16. Chemical hazard that was once found in paint - young children are frequently tested for this






17. Pollution from a factory near your school






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






19. One way zoos and aquariums help increase wildlife populations






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






21. Sex - weight - and health issues






22. A consumer that eats both plants and animals






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






24. A consumer that eats only animals






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






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






27. Deals with biological hazards






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






29. By increasing the need for people to drive






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






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






32. Shift of population from countryside to cities






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






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






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






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






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






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






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






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






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






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






43. The pattern of overlapping food chains in an ecosystem






44. Chemicals that cause cancer






45. The largest population that an area can support






46. Organism that carries pathogens






47. Habitat change and fragmentation






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






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






50. Building up not out