Question

which areas of the united states have a high risk for damaging earthquakes? charleston, south carolina; the middle mississippi valley, california, oregon, washington northeast usa, the west coast, the deep south omaha, nebraska; deluth minnesota; sanfrancisco, california

Explanation:

These areas are known seismic - active zones in the US due to tectonic plate boundaries and fault lines. California, Oregon, and Washington are on the West Coast near the Cascadia Subduction Zone and San Andreas Fault. Charleston has had significant historical earthquakes, and the middle Mississippi Valley has the New Madrid Seismic Zone.

Answer:

A. Charleston, South Carolina; the middle Mississippi Valley, California, Oregon, Washington