

After reading Chapter 13, you should be able to:
- Define the science of geomorphology.
- Describe the structure of the interior of the Earth.
- Distinguish between internal and external geomorphic processes and describe the driving forces behind them.
- Define the three main types of rocks and describe their formation in relation to internal and external geomorphic processes.
- Describe the concept of geologic time and explain its importance in landform studies.