Cinnabar (HgS) is in the same mineral class as ________.

According to the image below, where is new oceanic crust being formed?

The process by which solid material is carried away by glaciers, rivers, wind, or waves is called ______.

The following map shows semi-permanent high- and low-pressure systems in ____________.

 Sedimentary rocks overlie a basement of older intrusive igneous or metamorphic rocks in a(n) _____.

In the very distant future, plastic materials may be found in geologic strata currently being laid down. These will be considered ______.

The Earth’s layers can also be distinguished by the behavior of material. These layers are the _______ and _______.

Slab-pull occurs because subducting slabs are __________ and, therefore, __________ than the surrounding asthenosphere.

Measuring the elevation of a mountain means measuring variation in __________, whereas doing the same on a mid-ocean ridge would be measuring variation in __________. 

When entering a material through which it will travel more slowly, a seismic wave will ____.