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. Watering crops

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






3. Shift of population from countryside to cities






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






5. Causes a cooling effect

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6. Deals with biological hazards






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






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






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






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






11. Can result in a decrease of property damage






12. This draws people from urban areas to rural areas






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






14. An organism that can make its own food






15. Are carefully controlled






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






17. Building up not out






18. The mating of animals in zoos or wildlife preserves






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






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






21. A natural pattern in which species diversity generally increases toward the equator






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






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






24. The largest population that an area can support






25. Moving into a population






26. A consumer that eats only animals






27. Manage - protect and reintroduce threatened and endangered species






28. Sex - weight - and health issues






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






30. Energy from the sun would be reflected back into space






31. Using public transportation






32. Contamination of land - water - or air






33. Any substance that poses a chemical hazard






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






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






36. The practice of protecting the environment






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






38. Taking in carbon dioxide from the atmosphere during photosynthesis






39. The loss of a natural habitat






40. The process of cutting down all the trees in an area at once






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






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






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






44. The amount of carbon dioxide emissions for which an individual or group is responsible






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






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






47. Habitat change and fragmentation






48. One way zoos and aquariums help increase wildlife populations






49. An organism that breaks down wastes and dead organisms






50. By increasing the need for people to drive