Sort the examples of global change based on whether they are unidirectional, cyclic (nonperiodic), or cyclic (periodic).
(Drag and drop into the appropriate area below)
- ice ages
- evolution
- plate tectonics
- mass extinctions
- differentiation of Earth's layers
- Earth's axial tilt
Categories
Unidirectional Change:
Cyclic (Nonperiodic):
Cyclic (Periodic):
