14. Which of the following statements best describes 21st-century migration flows to the United States?<span>Large numbers of immigrants and migrant workers, including skilled and unskilled laborers and many with advanced degrees, are coming to the United States from South and Central America.
Plz give me branliest</span>
The slope of the line is m = -1
I think that a) is chemical, and b) would be chemical
The option that is an example of a barrier in a diffusion process that slow or stop the spread of an innovation is the lack of infrastructure to support a new technology.
The process of geographic diffusion can be understood as the dissemination of ideas, people, culture, things, technology, diseases, etc., from one place to another.
As an example, globalization, which is an example of spatial diffusion, that is, it starts at a point of origin and is spread very quickly to other places.
Therefore, a barrier in a diffusion process that slow the dissemination of an innovation is the letter a. lack of infrastructure to support a new technology.
Learn more about geographic diffusion here:
brainly.com/question/2035730
