A(n) ________ is a line joining points of equal air temperature.
a. contour line
b. isohyet
c. isotherm
d. isomag
Ans: c. isotherm
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Why would decompression of the mantle cause the production of mafic magma?
A) Mafic magma is produced at high pressures. B) With less pressure comes higher melting points. C) Mafic magma is produced at low pressure. D) With less pressure comes lower melting points.
Which of the following statements describe the Bible Belt?
A) stretches from Texas to Missouri B) based on Protestant denominations C) includes Catholicism D) stretches from Texas to Missouri; based on Protestant denominations E) all of the above
Which of the following gives the name for the rate at which the temperature changes inside a rising (or descending) parcel of moist air?
A. latent heat release rate B. saturated adiabatic lapse rate C. dry adiabatic lapse rate D. environmental lapse rate
Some geologists think that the large lava flow to the north of SP Mountain occurred before the final formation of the SP Mountain cinder cone itself. What evidence that you can see supports this conclusion? (Hint: Think about the structure, and so the relative strength, of a cinder cone.)
Look at the following volcanoes (note that the maps are of several different scales): • Mount Vsevidof (53°07'35"N, 168°41'16"W), a composite volcano in Alaska (shown on Map T-2, Map T-21b, and Figure 34-2) • Crater Mountain (37°52'42"N, 119°00'25"W), the highest peak of the Mono Craters, a chain of rhyolitic plug dome volcanoes in California (shown on Maps T-23a and T-23c) • SP Mountain (35°34'56"N, 111°37'55"W), a basaltic cinder cone in Arizona (shown on Maps T-22a and T-22b and Figure 34-3) • Mauna Loa (19°28'17"N, 155°35'41"W), a large shield volcano on the Big Island of Hawai‘i (shown on Maps T-1 and T-21a) What will be an ideal response?