at the boundaries of tectonic plates, rock materials
a.
are only brought to earth's interior from the surface.
b.
cannot be found due to the process of melting.
c.
are brought to earth's surface from its interior and to earth's interior from its surface.
d.
are brought to earth's surface through the process of erosion.
reset submit

It's C

Explanation:

I chose A and it was wrong so chose C.

the aksumite empire was an ancient kingdom located in what is now northern ethiopia from the period of 100 ad to 940 ad. its capital was the city of aksum. the kingdom established itself as one of the 4 great powers at its time, along with persia, rome, and china.

the kingdom was rich in goods like gold, iron, and salt. it established strong commercial ties with the regions governed by rome, egypt, and persia (arabia). aksum was a key location in this commercial network. trade was also facilitated with the introduction of the aksumite currency.

the use of electrical signals that transit messages is know as