Question: I read this background article the other day: Soil is well developed in the forest as suggested by the thick humus layers, rich diversity of large trees and animals that live there. In forests, precipitation exceeds evapotranspiration which results in an excess of water that percolates downward through the soil layers. Slow rates of decomposition leads to large amounts of fulvic acid, greatly enhancing chemical weathering. The downward percolation, in conjunction with chemical weathering leaches magnesium (Mg), iron (Fe), and aluminum (Al) from the soil and transports them downward, a process known as podzolization. This process leads to marked contrasts in the appearance and chemistry of the soil layers.  I am facing a new situation today: Two brothers owned two adjacent parcels of land. Tom's land was forested, while Bill's was covered with grasslands.  Using the knowledge I acquired from the background article, how should I answer correctly the following question regarding my new situation: Which parcel of land had an excess of water that percolates downward through the soil layers?
Answer:
Tom's