What are three causes of small earthquakes that could signal a volcanic eruption?

What was the first official pair of sister cities?

Why does a tidal bulge occurs on opposote sides of earth

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