Explain in term of osmosis, why a raisin placed in a cup of pure water overnight will puff up with water

In the term of osmosis, solvent molecules will move in the direction that will equalize the solute concentrations.

Since the concentration in cup of water is greater than the raisin, to equalize it , the concentration will flow from the cup to the raisin

Wetlands form where water and land meet. a lake with a wetland fringe can fill in with decayed plant and animal material to become a wet meadow. a pond can fill in to become a bog or fen. sediment can fill in a river marsh to become a swamp.flooding of coastal lowlands from rising sea levels has created broad coastal marshes that are protected from wave action by barrier islands or reefs. coastal wetlands also form when rivers deposit sediment as they reach the ocean. plants then take root and hold the soil firm against the forces of tides and waves.

The correct answer is b