4 Written Questions
4 Multiple Choice Questions
- After major changes in Earth's environments, species either died out or _________.
- Organisms with traits that are suited to an environment survive by the process of ________ ________.
- A gradual change in life-forms over time is ___________.
- Continental crust is mainly _______.
3 True/False Questions
Less → Major divisions of Earth's history are _______.
Species → Granite is ______ dense than basalt.
Eons → Granite is ______ dense than basalt.