This type of magma solidifies to form rocks relatively rich in silica, sodium, aluminum, and potassium. Fen A habitat composed of woodland and swamp. Fermentation Decomposition and breakdown of organic matter by anaerobic means. Fern A group of about 11,000 species of vascular seedless plants that belong to the division Pterophyta. About 75 percent of the various species of ferns are found in the tropics.
Some ferns grow on the branches of trees as epiphytes .
Ferrel Cell Three-dimensional atmospheric circulation cell located at roughly 30 to 60 degrees north and south of the equator. Ferricretes S edimentary rock created by the chemical precipitation of iron. Fertilizer Substance that adds inorganic or organic nutrients to soil for the purpose of increasing the growth of crops, trees, or other vegetation. The distance of open water in one direction across a body of water over which wind can blow. The water remaining in a soil after the complete draining of the soil's gravitational water .