All other factors equal, if a body of magma becomes more felsic, its viscosity will ________.
A. Increase
B. decrease
C. stay the same chemical
D. composition has no effect on viscosity
Answer: A. Increase
Environmental & Atmospheric Sciences
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A 100-N falling object encounters 40 N of air resistance. The net force on it is
A. 40 N. B. 60 N. C. 100 N. D. 0 N.
Environmental & Atmospheric Sciences
Describe the weather conditions necessary for a cumulonimbus cloud to form. Why does this cloud have an anvil-like shape?
What will be an ideal response?
Environmental & Atmospheric Sciences
Tsunami are usually caused by
A. earthquakes. B. Milankovich cycles. C. global warming. D. Earth's changing orbit.
Environmental & Atmospheric Sciences
Why are there tremendous amounts of erosion when it rains in a desert?
What will be an ideal response?
Environmental & Atmospheric Sciences