Which horizon of a soil profile is most weathered?

Question

In Earth Science we are studying the chapter on weathering, erosion, and soils. This question was in my homework, so can anyone please help?

Answer 1

the most weathered part of the soil profile is the eluvial (E for export of minerals) or E horizon. This is where the most leaching occurs. It usual occurs in the upper most part of the profile below the O horizon (Organic or topsoil).