What information is used to establish the lower numbers on the Mercalli scale?
What will be an ideal response?
People's opinions of "how the earthquake felt."
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Which form of producing electrical energy produces the highest amount of CO2 per unit of energy, when expressed as a percentage of emissions released by burning coal directly?
a. natural gas b. coal-fired electricity c. Coal d. oil sand e. synthetic oil and gas produced from coal
The boiling point of methanol is 65°C and the boiling point of ethanol is 78°C. Which of the following statements is true?
A) At 70°C you would have methanol gas and liquid ethanol. B) At 90°C you would have methanol and ethanol as solids. C) At 50°C you would have methanol and ethanol as gases. D) At 40°C the methanol reacts with the ethanol. E) none of the above
Which of the following is not a base?
A) HPO42- B) OH- C) NH3 D) None, they are all bases.
In the Cambrian, the major event for the North American continent was
A. Shallow Sea Transgression and Regression B. Eastern and Western Orogenic Activity C. Volcanic Activity D. Emplacement of plutons along the southern margin