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A “bird’s foot” delta configuration, similar to that of the Mississippi River delta, forms when the ________.

The majority of caves are formed by the dissolution of bedrock ________.

How are carbon dioxide (CO2) levels in the atmosphere affected by tectonic uplift of rocks and their resultant chemical weathering?

The geotherm is the rate of change of ________.

The mineral class that makes up >95% of the continental crust is termed the ________.

The majority of the rocks that occur at the surface of Earth are ________.

Calcite (CaCO3) is in which mineral class?

The Moho ________.

Trace amounts of impurity in a mineral can commonly produce significant differences in ________ among individual crystals of this mineral.

The image below shows a mineral specimen of quartz. What is the term for the smoothly curving, clamshell-shaped surface on the sample below?