Final answer:
The best synonym for "dissemination" as used in paragraph 3 is "spread."
Step-by-step explanation:
The best synonym for "dissemination" as used in paragraph 3 is "spread." Dissemination refers to the act of spreading or distributing something widely. Just like diffusion is the process of spreading particles from an area of high concentration to an area of low concentration, dissemination involves the wide distribution of information, ideas, or knowledge.