The answer is: Motor Neurons
Explanation:
This occurs when the motor neurons deliver nerve impulses from the spinal cord to the part of the body where a response to the stimulus is needed. In the above example, the response is the muscle contraction to quickly pull the hand away from the hot pot pan.
This is simple explanation of the question.
This means "what benefits does the volcanic activity have for the population?" I would say that the main benefit of continental volcanic activity is the expulsion of ash which can enrich the soil and in the tropics make it good for growing coffee, for example, as it does in El Salvador.
Play with the baby, feed it , or maybe change the diaper