Warming temperatures melt ice cover, exposing a darker surface that absorbs more solar radiation. In response, the air warms even further. This is an example of:
A) a positive feedback mechanism. B) a stable-feedback mechanism.
C) a negative feedback mechanism. D) a variable-feedback mechanism.
A
Environmental & Atmospheric Sciences
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The value of total outputs of goods and services in a year in a country is its
A) level of development. B) gross domestic product. C) productivity. D) value added.
Environmental & Atmospheric Sciences
Runoff moves overland via ____
A)sheet flow only B)channel flow only C)laminar flow only D)sheet and channel flow E)laminar, channel flow
Environmental & Atmospheric Sciences
The massive incursion of water on a coast that results from an offshore undersea earthquake is called a ______.
A. barrier B. fjord C. ria D. tsunami E. uvala
Environmental & Atmospheric Sciences
Use the following idealized stream channel to answer this question.
What is the discharge?
A. X+Y+Z B. X+Y+Y C. XYZ D. XYY
Environmental & Atmospheric Sciences