Which of the following describes a characteristic process in the formation of a pedalfer soil?
A)Soil bacteria produce organic acids that precipitate calcium carbonate in the B horizon.
B)Iron oxides and aluminum-rich clays are precipitated in the B horizon.
C)Humus accumulates below the solum in the C horizon.
D)Clays are eluviated upward from the C horizon.

Question

Quizplus · Accepted Answer

Pedalfer soils are formed in humid regions with abundant rainfall and high temperatures. In the process of forming pedalfer soils, iron oxides and aluminum-rich clays are precipitated in the B horizon. This process is known as pedogenesis, which involves the leaching of minerals from upper layers and their deposition in lower layers. The accumulation of iron oxides and aluminum-rich clays in the B horizon gives the soil its characteristic red or reddish-brown color.

Which of the Following Describes a Characteristic Process in the Formation