Mollisols are:

a. strongly acidic and highly leached.
b. rich in plant humus and bases.
c. moderately leached.
d. rich in iron and aluminum oxides.


B

Environmental & Atmospheric Sciences

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Most sand on beaches, in desert dunes, and in stream and river channels is made up of ____

A)CaCO3 B)NaCl C)SiO2 D)CaSO4 E)2H2O

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The term "natural capital" expresses the idea that the earth, air, water, and life on this planet can be thought of as a kind of "wealth" that we have inherited and that we can choose to well or poorly manage.

a. true b. false

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The central American country that was carved out of Colombia in order to build a canal is

A. Nicaragua B. Costa Rica C. Panama D. Honduras

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What are lines of equal elevation called on topographic maps?

a. isotherms b. contours c. geological contacts d. lineations e. grid lines

Environmental & Atmospheric Sciences