Half life is the time it takes for a given amount of a radio…

A metamorphic rock is similar both in mineralogy and texture…

A rock that behaves in a(n) ____ manner will bend under stre…

The point on the earth’s surface immediately above the focus…

_____ refers to a rock’s appearance with respect to the size…

. _____ describes the surface of a basalt flow with a smooth…

When a well is pumped, water flows into the well bore to rep…

When marine geologists collects a core of undeformed ocean-f…

The softest mineral on Mohs’ hardness scale is ____. 

Hess’s original hypothesis was that sea-floor spreading is d…