Factors contributing to desertification in the Sahel include all of the following except

A) deforestation and overgrazing.
B) population increases.
C) southward expansion of desert conditions following persistent drought.
D) lack of a regional environmental policy.
E) northward shift of the ITCZ.


E

Environmental & Atmospheric Sciences

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Barrier islands are more common along the Atlantic Coast than the Pacific Coast

Indicate whether this statement is true or false.

Environmental & Atmospheric Sciences

Population change =

A.

(Births + Deaths) (Immigration + Emigration)


B.

(Births Emigration) + (Deaths Immigration)


C.

(Births Immigration) + (Deaths Emigration)


D.

(Births + Emigration) (Deaths + Immigration)


E.

(Births + Immigration) (Deaths + Emigration)


Environmental & Atmospheric Sciences

The immediate causes of slope failures, such as earthquakes or heavy rainfall, are called ________.

A. sparks B. creators C. trips D. triggers E. roots

Environmental & Atmospheric Sciences

The direct collision of a raindrop with the ground, laterally shifting fine particles a few millimeters, is ______.

a - splash erosion b - valley cutting c - rill formation d - peds pushing e - plucking

Environmental & Atmospheric Sciences