Cultural diffusion: The term "cultural diffusion" is described as the spread of a particular culture's beliefs, practices, or/and items, such as tools, food, or music. Therefore, the given spread can be among different members of a similar culture or to entirely distinct cultures around the world. That is why "cultural diffusion" is many cultures tends to share similarities around the world.
In the question above, the given statement represents cultural diffusion.
The independent variable is temperature since it is the variable that is changed or controlled while the dependent variable ( test score of students) is the variable which is tested and measured as a result of the change in temperature
