Answer:
The sea-floor rocks are typically younger than the continental rocks, because sea-floor rocks are taken back into the mantle at subduction zones about as rapidly as new sea-floor rocks are produced, while continental rocks are not taken back into the mantle at subduction zones.
Explanation:
C. The most important members of this community were found outside the hierarchy of the church government in the monasteries that dotted Europe. ... During the high Middle Ages, the Roman Catholic Church became organized into an elaborate hierarchy with the pope as the head in western Europe. He establish supreme power.
This should be under mathematics not geography.
Flood control, house of living things and keep water purified
