Which of Earth's layers is comprised mainly of extremely hot liquid metals? A.
crust
B.
mantle
C.
outer core
D.
inner core

This map shows the member states of the european union (eu). based on this map, what is the most likely reason the eu was formed? a) to increase trade between european nations b) to protect themselves from foreign enemies c) to begin the process of forming one large nation d) to isolate europe from the rest of the international community j