Which layer is primarily composed of humus and minerals?

O Horizon

The top layer of soil made up of lastly leaf litter and humus

c, d, e, f, g, a, b, and c.

sometimes western music will also use solfege. the names of these are do ra me fa sol la si (or ti) and do.

to indicate a note a half step higher or lower then the original note, you would say c # (for a half a step above c) or bb (for half a step below b)

answerhenry viii;