Match the type of diffusion with its key characteristic.
Relocation Diffusion ↔️ Physical migration of people
Expansion Diffusion ↔️ Spreads from origin while remaining strong
Hierarchical Diffusion ↔️ Spreads from larger to smaller places
Contagious Diffusion ↔️ Rapid spread to nearby areas
Stimulus Diffusion ↔️ New form of trait adapts to local customs