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.
Other measurements also relate to quarts. A quart consists of 2 pints, and each pint is 2 cups, or 16 ounces. Quarts are also smaller parts of a whole. One gallon equals 4 quarts, and half a gallon is 2 quarts. Since each quart is 32 fluid ounces, a gallon is the same as 128 fluid ounces. When converting to the metric system, a quart is just slightly smaller than a liter.