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. An organism that can make its own food






2. The pattern of overlapping food chains in an ecosystem






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






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






5. By increasing the need for people to drive






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






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






8. Illegal killing or removal of wildlife from their habitats






9. The mating of animals in zoos or wildlife preserves






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






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






12. Has the highest amount of species diversity






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






14. A nonliving part of an organism's habitat






15. Chemicals that cause cancer






16. Building up not out






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






18. This draws people from urban areas to rural areas






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






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






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






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






23. Bumps on the roots of certain plants






24. Fires that are set by humans






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






26. A consumer that eats only plants






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






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






29. Can result in a decrease of property damage






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






31. Sex - weight - and health issues






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






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






34. A species that is at risk of extinction






35. Burning fossil fuels






36. Any substance that poses a chemical hazard






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






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






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






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






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






42. 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






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






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






45. Resulted in suppression of all forest fires


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






47. A group of organisms that are physically similar and can mate with each other and produce offspring that can also mate and reproduce






48. Taking in carbon dioxide from the atmosphere during photosynthesis






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






50. The form of transportation that uses the most energy per passenger mile