Migmatite ____

A)is produced during the lower temperature range of metamorphism
B)is a nonfoliated rock
C)never occurs due to regional metamorphism
D)always shows rotational metamorphism
E)has both igneous and metamorphic characteristics


E

Environmental & Atmospheric Sciences

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Short-grass prairies ____

a. are often cultivated without irrigation b. grow in areas where the subsoil is permanently dry c. cannot support grazing animals d. tend to coincide with areas of tropical monsoon climate e. only occur in the Southern Hemisphere

Environmental & Atmospheric Sciences

The concept that the earth was a sphere was not known until the Renaissance, in Columbus's time

Indicate whether the statement is true or false

Environmental & Atmospheric Sciences

Assume that these categories represent a progression of degradation through time. In other words, if left unchecked, lightly degraded soil progresses into moderately degraded soil and so forth. Which continent poses the greatest concern for future loss of agricultural productivity?

a. South America b. North America c. Africa d. Europe e. Asia

Environmental & Atmospheric Sciences

A climate classifications based on the interaction of air masses is an example of an empirical classification

Indicate whether the statement is true or false

Environmental & Atmospheric Sciences