Which of the following processes could result in a felsic magma?
a. partial melting of an intermediate-composition source
b. partial melting of continental crust
c. formation and settling of mafic crystals in an intermediate magma
d. all of these
Ans: d. all of these
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A Cadillac and a Mini Cooper roll down a hill at the same speed. While rolling the heavier Cadillac has greater
A. acceleration. B. momentum. C. impulse. D. all of the above
Worldwide, lightning results in how many deaths per year?
A) 100 B) 400 C) 600 D) 1000
Tropical monsoon climates are found principally in the interior of continents in the equatorial region
Indicate whether the statement is true or false
Along the margins of the Pacific are found most of Earth's ________
A) seamounts B) tablemounts C) abyssal hills D) oceanic trenches E) oceanic ridges