Match each soil horizon letter with its appropriate description.
o layer of sand mixed with mud
e layer of organic material
c layer of parent material
b layer of clay and iron accumulation
a mineral matter mixed with some decayed materials
layer that has little clay or iron, mostly sand.

Adeveloping nation's economy is based on a developed nation's economy is based on stay tuned- i may post some more questions from my study guide : )

Fertility and mortality rates are higher in more developed nations.

What statement about charlemagne is not true? a. charlemagne's empire collapsed during his rule b. charlemagne sent missionaries throughout europe c. charlemagne encouraged the arts and education d. charlemagne ruled much of western europe a. charlemagne's empire collapsed during his rule