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7 Written questions

6 Multiple choice questions

  1. a testable explanation of a situation
  2. all the water in Earth's oceans, lakes, seas, rivers, and glaciers plus all the water in the atmosphere
  3. standard for comparison in an experiment
  4. an idea, a system, or a mathematical expression that represents the idea being explained
  5. replacement for the metric system; based on a decimal system using the number 10 as the base unit; includes the meter: (m), second: (s), and kilogram: (kg)
  6. the study of the atmosphere, which is the air surrounding Earth

6 True/False questions

  1. oceanographystudy of materials that make up Earth and the processes that form and change these materials, and the history of the planet and its life-forms since its origin


  2. atmosphereblanket of gases surrounding Earth that contains about 78 percent nitrogen, 21 percent oxygen, and 1 percent other gases such as argon, carbon dioxide, and water vapor


  3. geologythe study of the atmosphere, which is the air surrounding Earth


  4. scientific theoryan explanation based on many observations during repeated experiments; valid only if consistent with observations, can be used to make testable predictions, and is the simplest explanation; can be changed or modified with the discovery of new data


  5. dependent variablefactor that is manipulated by the experimenter in an experiment


  6. environmental sciencestudy of the interactions of humans with environment


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