The light independent reaction of photosynthesis take place in the
hope this !
i'm pretty sure that the tubes are known as "xylem"
if the choices are:
a.the soil in the o horizon is also light brown.
b. the parent material rock had feldspar minerals in it.
c. the c horizon is very deep.
d. the soil in o, a, and b horizons supplied feldspar to the lower c horizon.
then ans is c.