Migration of a waterfall is an example of:
a. stream equilibrium
b. stream capture
c. enlargement of a drainage basin
d. headward erosion
d
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At what depth do gas bubbles have the most effect on magma?
A) When the magma first forms, before the bubbles can dissolve into the magma B) At moderate depths, when the magma is moving rapidly through the conduit C) At very shallow levels, such as within the volcano D) None of these are correct.
Explain the difference between the environmental lapse rate and adiabatic cooling
What will be an ideal response?
In North Africa, this is a tunnel well, dug into the base of a mountain
A) Foggara B) Flaj C) Qanat D) Hadith E) none of the above
Which is likely to flow farther down to the flatter, wider part of a valley: a debris flow or a mudflow? Why?
What will be an ideal response?