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






2. Contamination of land - water - or air






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






4. Help improve the standard of living for residents






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






6. The largest population that an area can support






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






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






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






10. Manage - protect and reintroduce threatened and endangered species






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






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






13. A nonliving part of an organism's habitat






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






15. Sex - weight - and health issues






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






17. Watering crops

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18. Organism that carries pathogens






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






20. Moving into a population






21. Pollution from a factory near your school






22. Taking in carbon dioxide from the atmosphere during photosynthesis






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






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






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






26. Can result in a decrease of property damage






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






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






29. A close relationship between two species that benefits at least one of the species






30. The mating of animals in zoos or wildlife preserves






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






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






33. Increase the stability of an ecosystem






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






35. Building up not out






36. Making direct measurements






37. Provide wood






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






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






40. The practice of protecting the environment






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






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






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






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






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






46. Has the highest amount of species diversity






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






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






49. Cooking oil - fuel - and medicines






50. Burning fossil fuels