Native americans in the great lakes–st. lawrence lowlands before the arrival of europeans.

died out from warfare and disease

were hunters and gatherers

lived in seacoast villages

lived in permanent settlements

Native Americans in the Great Lakes–St. Lawrence Lowlands before the arrival of Europeans.

died out from warfare and disease

were hunters and gatherers

lived in seacoast villages

lived in permanent settlements

a mid-ocean ridge or mid-oceanic ridge is an underwater mountain range, formed by plate tectonics. this uplifting of the ocean floor occurs when convection currents rise in the mantle beneath the oceanic crust and create magma where two tectonic plates meet at a divergent boundary.a geomagnetic reversal is a change in a planet's magnetic field such that the positions of magnetic north and magnetic south are interchanged.