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DSST Environmental Sciences Vocab

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. A graph that highlights segments of a circle to show simple distribution patterns






2. A graph that uses dots to compare rate of change over time






3. An organism that breaks down wastes and dead organisms






4. The pattern of overlapping food chains in an ecosystem.






5. Wheat -bairley -corn....carbohydrates






6. A severe shortage of food (as through crop failure) resulting in violent hunger and starvation and death






7. The process by which molecules of liquid absorb energy and change to gas






8. Organism that is killed






9. Moving into a population






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






11. Water stored in underground layers of soil and rock






12. Heat from the Earth's interior






13. The number of different species in a given area






14. The trapping of heat near Earth's surface by certain gases (carbon dioxide - water vapor and other gases) in the atmosphere






15. A resource that is able to be reused - or can be replenished quickly






16. A close relationship between two species that benefits at least one of them






17. The introduction of pesticides and high-yield grains and better management during the 1960s and 1970s which greatly increased agricultural productivity






18. An organism that obtains energy by feeding on other organisms






19. Anything that harms an organism






20. A resource that is not able to be reused - or cannot be replenished quickly






21. The first species to populate the area






22. The degree of hotness or coldness of a body or environment






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






24. The number of different species in an area






25. An energy rich substance (such as coal - oil - or natural gas) formed from the remains of organisms






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






27. Evaluation of the short-term and long-term risks associated with a particular activity or hazard






28. A graph that uses line segments to show changes that occur over time






29. The issue where humans don't take care of the Earth.






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






31. A study that compares the costs and benefits to society of providing a public good






32. A consumer that eats both plants and animals






33. A consumer that eats only plants






34. Resources supplied by nature






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






36. A habitat in which the freshwater of a river meets the salt water of an ocean






37. Leaving a population






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






39. The variable that you manipulate






40. Beginning of urban cities - switch from man power to fossil fuels - machinery and factories are prevalent






41. The effect of the IV






42. A measure of human demand on the Earth's ecosystems






43. Rice - corn - potatos - wheat - soy beans






44. In an experiment - the group of participants that recieves the manipulation






45. A chart with bars






46. Countries with strong economies and a high quality of life






47. An interaction in which one organism kills and eats another






48. The community of organisms that live in a particular area along with their nonliving surroundings






49. The continuous process by which water moves from Earth's surface to the atmosphere and back






50. When a large fraction of the resource has been used up