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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 species in danger of becoming extinct in the near future






2. Farmers who raise food and animals mainly to feed their own families






3. An organism's particular role - or how it makes its living






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






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






6. A relationship that involves one organism living on or inside another organism and harming it






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






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






9. A nonliving part of an organism's habitat






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






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






12. The practice of reducing energy use






13. Any form of water that falls to the Earth's surface






14. Water stored in underground layers of soil and rock






15. Something that breaks down into soil






16. Heat from the Earth's interior






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






18. Liphids - proteins - and carbohydrates






19. The process in which the changes that make organisms better suited to their environments develop






20. Wheat -bairley -corn....carbohydrates






21. The organism that the parasite lives in or on






22. Something that does not completely break down into the soil






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






24. The study of the impact of humans on the environment






25. A state of poor nutrition; lacking enough calories or variety in diet






26. Flaw in design of procedure






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






28. The number of different species in an area






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






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






31. Organism that does the killing






32. Mass destruction of most species






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






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






35. Situation in which people acting individually and in their own interest use up commonly available but limited resources - creating disaster for the entire community






36. A material that cannot be recycled or reused






37. The series of predictable changes that occur in a community over time






38. A higer demand of that limited product the the price goes up






39. Illegal killing or removal of wildlife from their habitats






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






41. Leaving a population






42. The practice of growing - breeding - and caring for plants and animals that are used for food - clothing - transportation - and other uses






43. The number of different species in a given area






44. The act of restricting your food intake (or your intake of particular foods)






45. A relationship in which both species benefit






46. The condition in which human needs are met in such a way that a human population can survive indefinitely






47. The amount of food production in a given area






48. The process of cutting down only some trees in area






49. Measure of quantity of food produced on a given area of land with limited inputs of energy and resources






50. Possible to use again






Can you answer 50 questions in 15 minutes?



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