Sublimation is a straight transition from solid to gas. This occurs in dry ice as it the ice, which is a solid state, does melt and have a liquid form. Therefore it is called dry ice as it doesn’t produce any liquid
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The natural particle sources include volcanoes, forest fires, ocean spray, biologic sources and the anthropogenic sources of particles are transportation, fuel combustion in stationary sources, a variety of industrial processes, solid waste disposal and miscellaneous sources such as agricultural activities and fugitive ...
<span>cellular respiration
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animals will use sound, colors, and stance. Another way would be by leaving their imprint or mark on their territory. For example a dog peeing on an area they used.
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Active transport requires energy because it moves molecules across a membrane to a region of lower to higher concentration which is often against their concentration gradient or has an obstructing factor.