Question

define osmosis ... fast

Answer 1

a process by which molecules of a solvent tend to pass through a semipermeable membrane from a less concentrated solution into a more concentrated one, thus equalizing the concentrations on each side of the membrane.

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Answer 2

Osmosis is the movement of water molecules from the region of their higher concentration to the region of their lower concentration through a semi-permeable membrane until the concentration becomes same on both sides of the membrane.
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