Where is the Sahel located? Is this a region of scarce, variable, or abundant rainfall? Describe the biogeophysical feedback mechanism whereby a reduction in surface vegetation might cause a reduction in precipitation amounts.
What will be an ideal response?
Answers may vary.
Environmental & Atmospheric Sciences
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In 1994, because of concerns about cultural eutrophication, laundry detergent manufacturers voluntarily stopped producing detergents that contained
A) artificial dyes. B) phosphates. C) chlorine. D) nitrogen.
Environmental & Atmospheric Sciences
Cartography is the science and profession of ____
a. data collection b. surveying c. navigation d. satellite sensor design e. mapmaking
Environmental & Atmospheric Sciences
The Russian Federation has a ________ urbanized population; and Central Asia is ________ urban
A) 50%; 50-70% B) 76%; 30-50% C) 72%; 56-69% D) 66%; 20-40% E) 80%; 25-45%
Environmental & Atmospheric Sciences