<span><span>the sponge, any of the primitive multi-cellular aquatic animals that constitute the </span>phylum Porifera, </span><span><span>the Spongillidae another type of sponge, are found in fresh water</span> </span>
C. Ice is less dense than water which means water condenses when it freezes allowing the ice in a lake to float on top of the water preventing the water below from freezing.
