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. Has the highest amount of species diversity






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






3. 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






4. Sex - weight - and health issues






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






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






7. Viruses - bacteria and other organisms in the environment that harm human health






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






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






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






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






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






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






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






15. Shift of population from countryside to cities






16. Burning fossil fuels






17. Illegal killing or removal of wildlife from their habitats






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






19. The amount of replacement is equal to the amount harvested






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






21. Help improve the standard of living for residents






22. Chemicals that causes harm to embryos and fetuses






23. Fires that are set by humans






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






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






26. Rising sea level






27. Watering crops

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28. One way zoos and aquariums help increase wildlife populations






29. Increase the stability of an ecosystem






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






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






32. Using public transportation






33. The highest level of biodiversity






34. Taking in carbon dioxide from the atmosphere during photosynthesis






35. Chemicals that cause cancer






36. Building up not out






37. A consumer that eats only animals






38. Habitat change and fragmentation






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






40. Cooking oil - fuel - and medicines






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






42. Are carefully controlled






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






44. A consumer that eats only plants






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






46. A species that is at risk of extinction






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






48. A carnivore that feeds on the bodies of dead organisms






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






50. The largest population that an area can support