Which type of diffusion occurs when an idea spreads throughout the population without the actual physical movement of people? A. Economic diffusion
B. Hierarchical diffusion
C. Contagious diffusion
D. Stimulus diffusion
E. Relocation diffusion

This if for AP Human Geography, I am doing the Module 3 exam and I do not know most of the questions, please help

C. Contagious diffusion

Explanation:

In human geography , diffusions refers to the spread of cultural elements from one society to another.

Contagious diffusion occurs when an idea or knowledge is taught by one members of another society. When that member come back to their home origin, that person will spread the idea/knowledge to another person. After that, That other person will tell another person and chain will continue. Eventually, the idea will be spread in the new society like a contagious disease.

This is how contagious diffusions manage to spread ideas without actual movement of the people who originally  owned the ideas

wealthy plebeians became part of the roman nobility. however, despite changes in the laws, the patricians always held a majority of the wealth and power in ancient rome. a third social class in roman society was the slaves. around one third of the people living in rome were slaves.

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other sources of text

explanation:

this can be magazines, news reports, scholarly articles, textbooks, research papers etc.