30. Convection is commonly caused by?
Weegy: Convection is the movement of molecules within fluids (i.e. liquids, gases) and rheids. It cannot take place in solids, since neither bulk current flows nor significant diffusion can take place in solids. [ There are many forms of convection, termed natural, forced, gravitational, granular, thermomagnetic, combustion, capillary action, as well as the Marangoni and Weissenberg effects. Due to its role in heat transfer, convection plays a ...
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9/7/2011 3:04:57 PM