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Sedimentary rocks are classified as:

A mountain-building event is often referred to as a(n):

​Most of the organisms that have ever existed are now extinct.

The early atmosphere was formed due to outgassing, or the release of gases from Earth’s interior, during what type of process?

Human wisdom teeth and the dew claws of dogs are examples of ____ since their functionality has changed over time.

Plastic strain occurs when deformed rocks break or fracture as brittle solids.

Earth’s early atmosphere was very rich in oxygen (O2).​

What is the main driver of foliation in metamorphic rocks?

Oxygen levels in the atmosphere have been stable over Earth’s history.

Sedimentary facies are layers of rock that are identical to the surrounding layers.