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


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






3. Are carefully controlled






4. Sex - weight - and health issues






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






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






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






8. Manage - protect and reintroduce threatened and endangered species






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






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






11. A consumer that eats both plants and animals






12. Provide wood






13. Bumps on the roots of certain plants






14. Has the highest amount of species diversity






15. Cooking oil - fuel - and medicines






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






17. Chemicals that causes harm to embryos and fetuses






18. Deals with biological hazards






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






20. A consumer that eats only animals






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






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






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






24. 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






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






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






27. Moving into a population






28. One way zoos and aquariums help increase wildlife populations






29. A species that could become endangered in the near future






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






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






32. The number of different species in an area






33. The study of the natural processes that occur in the environment and how humans can affect them






34. Using public transportation






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






36. Increase the stability of an ecosystem






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






38. The pattern of overlapping food chains in an ecosystem






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






40. The largest population that an area can support






41. A nonliving part of an organism's habitat






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






43. Causes a cooling effect


44. Illegal killing or removal of wildlife from their habitats






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






46. Can result in a decrease of property damage






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






48. Process of measuring the chance that an environmental hazard will cause harm






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






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