The general term ________ denotes a buried, erosional surface where rock layers are missing.

In regions where deserts are expanding, ________ is said to be occurring.

What fundamental concept states that in a horizontal sequence of conformable sedimentary strata, each higher bed is younger than the bed below it?

________ refers to the tendency for a foundation material to lose its internal cohesion and fail mechanically during earthquake shaking.

The Mercalli earthquake magnitude scale is based on the total amount of energy released by the earthquake.

The ________ is the idea or concept that ancient life forms succeeded each other in a definite, evolutionary pattern and that the contained assemblage of fossils can determine geologic ages of strata.

The upper mantle is very close in chemical and mineralogical composition to ________.

Once a hurricane makes landfall, it ________.

A ________ is an isolated remnant of bedrock standing above a wave-cut platform.

Which of the following is TRUE of the decay of U-238?