________ 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

Environmental & Atmospheric Sciences

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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).

Environmental & Atmospheric Sciences

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

Environmental & Atmospheric Sciences

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.

Environmental & Atmospheric Sciences

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.

Environmental & Atmospheric Sciences