Global warming combined with increasing carbon dioxide amounts may lead to further global warming. This is an example of a
A) negative feedback
B) positive feedback
C) neutral feedback
D) adiabatic feedback
Answer: B
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A wave behaves as a shallow water wave when the depth of the ocean is less than
A. one wavelength. B. 1/2 wavelength. C. 1/20 wavelength. D. 1/23 wavelength.
Humid air is ____ than dry air because molecules of water vapor ____ than molecules of nitrogen and oxygen at the same temperature
A) ?more dense; weigh more B) ?less dense; weigh less C) ?more dense; weigh less D) ?less dense; weigh more
A wind shift in a counterclockwise direction, as from east to north, is termed ________ wind shift
A) backing B) cyclonic C) frontal D) veering
The inability for a country to reach its potential with its given labor, natural resources and available technology is termed ________.
A. deprivation B. deficiency C. underdevelopment D. poverty