The amount of dissolved oxygen in water may decrease because of the decrease in density of water increase in plants in the water decrease in temperature of water increases in organic matter in the water

The model illustrates a process by which a substance is taken up by a cell

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Match the correct terms to their descriptions a system in which only energy but not matter is exchanged frozen water in snow part of geosphere that includes only soil a thin layer between the troposphere and the stratosphere cryosphere tropopause closed system pedosphere