The Pacific Ring of Fire is formed by
A. earthquakes.
B. a string of volcanoes.
C. a string of seamounts.
D. island arcs.
Answer: B
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Using Map T-1, the “Hawaii, Hawaii,” topographic map (scale 1:250,000; contour interval 200 feet), calculate the gradient of Mauna Loa (19°28'17"N, 155°35'41"W) along line AB, from the 5000', contour (near Point A) toward the summit. On the edge of a piece of paper measure out a distance of 10 miles using the graphic map scale, and then determine the elevation change over that distance.
In this problem, you will compute the gradients of Mauna Loa in Hawai‘i, Mount Vsevidof in Alaska, and SP Mountain in Arizona. (You may also determine the elevation changes and distances needed to calculate these gradients by using Google Earth™.) The recommended starting point and distance to measure are given for all three volcanoes.
The ____________________ ____________________ lie at about 30 degrees north and south, and they were disliked by sailors
Fill in the blank(s) with correct word
At what time of day is an air-mass thunderstorm more likely to develop?
A) midmorning B) midnight C) midafternoon D) pre-dawn
The low-viscosity, fluid lava of hot-spot volcanoes in ocean basin settings is typically
A. mafic. B. ultramafic. C. intermediate. D. felsic.