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 amount of replacement is equal to the amount harvested






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






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






4. Global phenomenon that has caused some organisms to move toward the poles and to higher altitude






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






6. A species that is at risk of extinction






7. Chemicals that cause cancer






8. Increase the stability of an ecosystem






9. Burning fossil fuels






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






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






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






13. A consumer that eats both plants and animals






14. An organism that breaks down wastes and dead organisms






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






16. Fires that are set by humans






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






18. The largest population that an area can support






19. The practice of protecting the environment






20. Can result in a decrease of property damage






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






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






23. One way zoos and aquariums help increase wildlife populations






24. An organism that can make its own food






25. Manage - protect and reintroduce threatened and endangered species






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






27. Organism that carries pathogens






28. Businesses are arranged in a long row along a roadway - with no main community






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






30. Resulted in suppression of all forest fires


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






32. Are carefully controlled






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






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






35. Chemical hazard that was once found in paint - young children are frequently tested for this






36. Deals with biological hazards






37. Any substance that poses a chemical hazard






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






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






40. The number of different species in an area






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






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






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






44. Using public transportation






45. The mating of animals in zoos or wildlife preserves






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






47. Sex - weight - and health issues






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






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






50. A living part of an organism's habitat