Which of the following names is used to identify the most recent epoch of Earth history that has been characterized by frequent cycles of glaciation?
a. Holocene
b. Pleistocene
c. Altithermal
d. Recent
B
Environmental & Atmospheric Sciences
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Desertification in the Sahel region occurred in large part because of a positive feedback mechanism involving the descending branch of the Hadley cell
Indicate whether the statement is true or false
Environmental & Atmospheric Sciences
Which of the following is true of Mollisols?
A) They are commonly found in tropical conditions. B) Leaching is excessive in most of these soil types. C) They are found in places with seasonal moisture deficits. D) Gleization is an important process contributing to their formation.
Environmental & Atmospheric Sciences
A tundra climate is situated farther from the poles than a subarctic climate
Indicate whether the statement is true or false
Environmental & Atmospheric Sciences
Land sediments are much more stable than seafloor sediments.
a. true b. false
Environmental & Atmospheric Sciences