Chert is dominantly composed of:

Peat and coal would most likely be produced in which one of the following environments:

True or False:  Both breccia and conglomerate are composed of gravel-sized particles.

A very fluid basalt lava flow with ropy or billowy surface is called:

The aluminum-rich mineral commonly found in laterite soils and is used to produce aluminum metal is:

Sediment that compose graywacke sandstone are commonly transported in a:

Which rock would most likely form in an evaporating saline lake?

The process in which particles are selected and separated according to grain size is called:

While traveling through Yosemite National Park, during your vacation to California, you observe several large rock bodies broken into layers that resemble giant onions, and you realize that they are:

Magma is produced at divergent plate boundaries (mid-oceanic ridges) because: