Adevice that creates a potential difference in an electric circuit is a(n)
a. insulator
b. voltage source
c. conductor
d. circuit

B. Voltage source

Voltage is the same as potential difference and a voltage source's function is to create a potential difference to allow current to flow.
          
                         - AS Level Student studying physics

“when two plates carrying continents collide, the continental crust buckles and rocks pile up, creating towering mountain ranges. when an ocean plate collides with another ocean plate or with a plate carrying continents, one plate will bend and slide under the other. this process is called subduction. “ i found this on google i hope it