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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 largest population that an area can support






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






3. Causes a cooling effect

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






5. Moving into a population






6. Chemicals that causes harm to embryos and fetuses






7. A consumer that eats both plants and animals






8. Manage - protect and reintroduce threatened and endangered species






9. Illegal killing or removal of wildlife from their habitats






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






11. An organism that can make its own food






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






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






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






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






16. Building up not out






17. Land that is sparsely populated and has few buildings or roads






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






19. Shift of population from countryside to cities






20. Bumps on the roots of certain plants






21. The study of how living things interact with each other and their environment






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






23. Rising sea level






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






25. Leaving a population






26. Organism that carries pathogens






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






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






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






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






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






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






33. Are carefully controlled






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






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






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






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






38. 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






39. The practice of protecting the environment






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






41. A living part of an organism's habitat






42. Deals with biological hazards






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






44. A group of land ecosystems with similar climates and organisms






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






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






47. Burning fossil fuels






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






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






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







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Can you answer 50 questions in 15 minutes?


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