Please describe some basic similarities and differences in project requirements, scope change control and deliverables prioritization between traditional (predictive / Waterfall) project management with Agile (iterative/incremental) project management frameworks.

Please describe some basic similarities and differences in project requirements, scope change control and deliverables prioritization between traditional (predictive / Waterfall) project management with Agile (iterative/incremental) project management frameworks.
Conduct independent research and describe to me how effective project governance helps prevent project scope creep.