Chapter 3 Online Study Guide

15 Questions | Total Attempts: 219

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Study Guide Quizzes & Trivia

You have 45 minutes and 1 attempt at this study guide. Read the chapter before answering the questions so you don't run out of time. This is an individual assignment - do not give or receive answers from other students.


Questions and Answers
  • 1. 
     Easter Island is an example of the tragedy of the commons. What resource was unsustainably harvested?
    • A. 

      Palm trees

    • B. 

      Fish

    • C. 

      Fresh water

    • D. 

      Ground squirrels

  • 2. 
    When did the population of Easter Island peak? 
    • A. 

      1200

    • B. 

      1300

    • C. 

      1400

    • D. 

      1500

    • E. 

      1600

  • 3. 
    The concept of ______________________________ is important in science to detect errors in measurement and conscious and unconscious bias by investigators.  (spelling counts!- use all lower case and spell correctly)
  • 4. 
    Which of the following words is a measure of reproducibility? 
    • A. 

      Accuracy

    • B. 

      Precision

  • 5. 
    Another example of acontrolled experiment, called a ______________ experiment, is used to test most new drugs. One group of patients is given the new drug (the experimental group). A second, similar set of patients (the control group) is given a placebo - a harmless starch pill similar in shape, size, and color to the pill being tested.  To avoid bias, niehter the patients nor the physicians invovled know who is getting the experimental drug and who is getting the placebo, which is why this is called a _________________ approach.
  • 6. 
    Which type of reasoning goes from the gneral to the specific? For example: All Birds have feathers. Eagles are birds, therefore all eagles have feathers.  
    • A. 

      Deductive

    • B. 

      Inductive

  • 7. 
     It is very important that you think for yourself in this class. All of you (and I) have unconscious biases that give us opinions of topics before we have done the research. It is very important that you think for yourself as we progress through the semester. Read the Critical Thinking Guest Essay by Dr. Heinze-Fry and answer the first Critical Thinking question. answer using at least 3 sentences
  • 8. 
     Anexample invovles projected global warming of the atmosphere. Such warming appears to be shrinking the reflective white Arctic ice pack and exposing more open ocean. Because the open ocean absorbs much more heat than ice pack, as the ice pack diminshes the oceans will warm more rapidly. This can in turn melt more ice and lead to even faster warming of the ocean's surface in a a _________________________
    • A. 

      Negative feedback loop

    • B. 

      Positive feedback loop

    • C. 

      Neutral feedback loop

  • 9. 
    A _________________ interaction occurs when two or more processes interact so that the combined effect is greater than the sum of their separate effects.  
  • 10. 
     ....the appearance of severe thinning of the ozone layer over _______ several months each year.
  • 11. 
    Various forms of an element having the same atomic number but a different mass number are called __________ of that element.
  • 12. 
     pH is a meaure of the concentration of _________ ions in a water solution. These are positive ions or cations (negative ions are called anions).
    • A. 

      Hydrogen

    • B. 

      Helium

    • C. 

      Calcium

    • D. 

      Nitrogen

  • 13. 
     The toxic polychlorinated biphenyls (such as c12H5CL5) are oily compounds used as insulating materials in electric transformers. If you go fishing at Lake Worth there are signs that say - don't eat the fish due to PCB's (the short hand for polychlorinated biphenyls! Which of the following categories includes PCBs?
    • A. 

      Hydrocarbons

    • B. 

      Chlorinated hydrocarbons

    • C. 

      Chlorofluorocarbons

    • D. 

      Carbohydrates

  • 14. 
    Which of the following forms of electromagnetic radiation has the longest wavelength? (one of the Figures in Chapter 3) 
    • A. 

      Gamma rays

    • B. 

      X rays

    • C. 

      Microwaves

    • D. 

      Radio waves

  • 15. 
    Which of the following is a nondegradable pollutant? 
    • A. 

      Feces

    • B. 

      DDT

    • C. 

      Mercury

    • D. 

      Nitrogen

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