Qtr 1 Geoscience Final Exam Study Guide

Front

What is the average thickness of the Earth's crust?

Back

40 kilometers.

Front

What is the average density of the Earth's crust?

Back

2.7-3.0 g/cm³.

Front

What is the name of the cool and rigid outermost shell of the Earth?

Back

Lithosphere.

Front

What are the two main components of the lithosphere?

Back

Crust and mantle.

Front

Who was Archbishop James Ussher?

Back

A bishop who constructed a timeline of human and Earth history.

Front

What are stars?

Back

Balls of hot gas that produce their light and energy.

Front

What is a granitic rock commonly found in the crust?

Back

Granodiorite.

Front

What is the average thickness of the lithosphere?

Back

100 kilometers.

Front

What is the primary composition of the Earth's crust?

Back

Granite and basalt.

Front

What geological process follows uplift and erosion?

Back

Sedimentation.