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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. Causes a cooling effect

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2. The loss of a natural habitat






3. The largest population that an area can support






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






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






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






7. Making direct measurements






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. The pattern of overlapping food chains in an ecosystem






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






11. A consumer that eats both plants and animals






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






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






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






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






16. Can result in a decrease of property damage






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






18. Resulted in suppression of all forest fires

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






20. Organism that carries pathogens






21. Watering crops

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22. A species that is at risk of extinction






23. Are carefully controlled






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






25. Sex - weight - and health issues






26. The disappearance of a particular population from a given area - but not from the entire species globally






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






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






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






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






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






32. Burning fossil fuels






33. Bumps on the roots of certain plants






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






35. Help improve the standard of living for residents






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






37. Pollution from a factory near your school






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






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






40. Increase the stability of an ecosystem






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






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






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






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






45. Contamination of land - water - or air






46. By increasing the need for people to drive






47. Habitat change and fragmentation






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






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






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







Sorry!:) No result found.

Can you answer 50 questions in 15 minutes?


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