The nature of volcanic eruptions is closely related to plate tectonics and magma type. Which of the following best describes basaltic magma?
A. relatively SiO2 rich and cool
B. relatively SiO2 poor and cool
C. relatively SiO2 poor and hot
D. relatively SiO2 rich and hot
Answer: C
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The Coriolis effect causes objects moving in the northern hemisphere to veer off course ____
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Which of the following is involved in the conversion of testosterone to estradiol?
A) Conversion of an alcohol to a ketone followed by loss of -H and of -CH3. B) Conversion of a ketone to an alcohol followed by loss of -H and of -CH3. C) Loss of -H and of -CH3 followed by conversion of an alcohol to a ketone. D) Loss of -H and of -CH3 followed by conversion of a ketone to an alcohol.