What process(es) play key roles in soil formation?

A. Physical weathering
B. Both chemical and physical weathering
C. Chemical weathering


Answer: B

Environmental & Atmospheric Sciences

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Replacement fertility ________

A) is equal to 2.1 in stable populations B) is a contraceptive technique C) restores population size after a catastrophic event D) is below 2 in Latin America and the Caribbean E) is below 2 in Africa

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A climate classification based on the geographic determinants of climate, such as latitude or elevation, is an example of a(n)

A) empirical classification. B) genetic classification. C) combined classification.

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Two rock types that have been studied in the laboratory to determine likely temperatures at depth in the mantle are

A) peridotite and olivine. B) diamond-bearing rocks and olivine. C) peridotite and diamond-bearing rocks. D) basalt and peridotite.

Environmental & Atmospheric Sciences

Forces that bind a state together are ________ forces

A) unitary B) federal C) centripetal D) centrifugal

Environmental & Atmospheric Sciences