Geo-targeting is a way for businesses to target audiences in specific geographic locations via their ads. This means they have the freedom to tailor their ad content to that specific audience, and those ads will only be visible to people in the locations they are targeting.
This is a great technique for reducing the number of wasted clicks from audiences in places where you know your product is not likely to be as popular. Or, for example, it can be used to eliminate certain audiences if you only offer delivery to specific areas.