How do mineral lineations that form in the brittle and plastic regime differ?
What will be an ideal response?
Ans: Mineral lineations formed in the plastic regime form by physical rotation, growth in a preferred (usually stresscontrolled) direction or are minerals that have been stretched during crystal-plastic deformation. In the brittle regime mineral lineations are fibers that grow during opening of voids (extension fractures) and are as such restricted to these structures.
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An area with a high nutritional density almost always has a low agricultural density
Indicate whether this statement is true or false.
Mid-latitude cyclonic storms are better developed in the United States during the coldest months because the polar jet stream ____
A) is weakest in the winter B) moves farther north in the winter C) is shut down in the winter D) moves farther south in the winter
The Zambia–Zimbabwe river boundary, the Zambezi, plunges over the spectacular Victoria Falls into a series of gorges in ________ Africa
A) north B) southern C) east D) west
The largest storm waves stir the subsurface water down to the ________
A) depth of tens of millimeters B) depth of tens of meters C) depth of tens of kilometers D) bottom, however deep it is E) depth at which the temperature goes below freezing