This movement is called convection. It can be found in liquids, gasses and rheids - solids that can also experience movement ( on a big time scale), such as the earth mantle. One of the types of convection is diffusion: net movement of gasses from higher to lower concentration areas.
Lords could levy taxes on their townspeople! Have a great day
Agriculture, forestry, and fishing industries.
It is <span>C. Russians, Ukrainians, and Belarussians
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