The basic premise behind the "The tragedy of the commons" is
A. when assessing risk, people frequently overestimate unfamiliar risks.
B. pollution prevention is costs less than pollution clean-up.
C. a resource becomes overexploited when its ownership is shared.
D. All of these are correct.
Answer: C
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What is the source of high carbon dioxide levels at middle depths in the ocean?
a. mineral formation b. plant photosynthesis c. atmospheric deposition d. decay of the remains of organisms e. venting and outgassing
Recent work has shown that the last major earthquake in the Cascadia subduction zone occurred about 9 PM on 26 January 1700 and was about magnitude 9.
Answer the following statement true (T) or false (F)
Which of the following is true of anaerobic reactions?
A) They are all redox reactions. B) They are never redox reactions. C) They occur in the presence of oxygen. D) They occur in the absence of oxygen.
Once released into the atmosphere, chlorofluorocarbons remain about ____
a. 10-20 days b. 50-100 years c. 1-2 years d. 1-2 month e. 1000 years