Long, thin lava flows are typically produced by
A) volatile-rich eruptions.
B) high-viscosity lavas.
C) low-viscosity lavas.
D) collapsing eruption columns.
C) low-viscosity lavas.
Environmental & Atmospheric Sciences
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The magnitude of the vertical component of a 5-unit vector at 60° from the vertical is
A. greater than 5 units. B. less than 5 units. C. 5 units. D. none of the above
Environmental & Atmospheric Sciences
Niagara Falls is a large waterfall on a river, so it can be considered as an example of _______.
a - a rill b - lateral erosion c - a water gap d - a knickpoint e -stream capture
Environmental & Atmospheric Sciences
____________________ glaciers produced bowl-shaped depressions on mountains called cirques. Fill in the blank(s) with the appropriate word(s)
Environmental & Atmospheric Sciences
The Ka for lactic acid is 8.4 x 10^-4. What is the pKa of lactic acid?
A) -10.92 B) -3.08 C) 3.08 D) 10.92
Environmental & Atmospheric Sciences