Radio and cell signals are bent around objects like mountains and tall buildings. This can allow you to still have a signal, even without a straight line to the tower. This bending of waves around a barrier or through a slit is called ______. Group of answer choices

interference

refraction

reflection

diffraction

interference

Explanation:

An independent variable is the variable in an experiment that can be changed or controlled. the dependent variable is the variable that is being measured or tested in an experiment. and lastly the controlled variable is something in the experiment you cannot change.