.The only active volcano in the world that exists below sea level is?

Active Volcano Found Under Antarctic Ice: Eruption Could Raise Sea Levels. The summit of Mount Erebus casts a long shadow out over the Ross Sea. Mount Erebus is the most active volcano in Antarctica—and one of a few in the world with a permanent lake of molten lava in its crater.

Explanation:

. political or economical policy that isolates a country from participating in international relationships. it has been suggested that the united states participates in isolationism because of its lack of involvement in particular wars or alliances.