________ are pyroclastic materials that are larger than ash, but smaller than blocks or bombs
A) Pumice
B) Scoria
C) Lapilli
D) Pillow lavas
Answer: C
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Which method is used by RUSLE to compute the average soil loss from six factors?
A. multiplication of the six factors B. weighted linear combination of the six factors C. addition of the six factors
The breakup of Pangaea and the formation of the Atlantic and Indian Oceans were responsible
for the shrinking of the Pacific Ocean. Indicate whether the statement is true or false.
The ____________________ of an earthquake on the Richter Scale is determined by measuring the
____________________ of the largest recorded seismic wave. Fill in the blank(s) with the appropriate word(s).
Which of the following is a common setting for a spring?
A. sedimentary rocks overlie crystalline rocks along an unconformity B. the water table intersects the surface C. a permeable rock overlies a less permeable one D. All of these. E. None of these.