Answer:
Achievements of the Harappan civilization included all of the following except Indoor plumbing
A. Bacteria in unclean water.
Answer:
(C) Promoted the creation of national culture.
Hope this helped <3
Cultural diffusion is the spread of culture from one area to another for example the spread of Islam. Today cultural diffusion is a simpler process due to technological advancements such as the internet, but in the past cultural diffusion happened mainly when people traveled to other countries.
