A fen is one of the main types of wetland, the others being grassy marshes, forested swamps, and peaty bogs. Along with bogs, fens are a kind of mire. Fens are usually fed by mineral-rich surface water or groundwater.
Quick Answer. A gallon has 4 quarts. Each quart has 2 pints, so a gallon also contains 8 pints. Each pint is 2 cups, so a gallon has 16 cups.
One gallon contains 4 quarts, which is also equivalent to 8 pints or 16 cups of liquid. Other countries use liters over gallons when it comes to liquid measurement. One liter is roughly the equivalent of 1 quart. Thus, 4 liters are approximately the same as 1 U.S. gallon.