The answer to this question would be: <span>a) an unconditioned stimulus (UCS)
In Pavlov experiment, the meat is </span><span>an unconditioned stimulus (UCS) because it doesn't need any learning. The meat will cause increased saliva production in the dog is it was reminding it of food. The bell, in this case, is conditioned stimulus because the dog learns the connection of the bell with the food.</span>
Answer:
I don't know the options but my best guess would be erosion. Every time water comes on the beach is takes sand which erodes the beach. Hope that helps!