How does water get below the surface to become groundwater?

Once it reaches the zone of saturation under the ground, groundwater begins to move slowly by the force of gravity through the interconnecting pore spaces until it reaches a discharge area, where it seeps or flows out into a wetland, spring, river, or pond to become part of the surface water.

d.

explanation:

your body is trying to warm itself up. or more precisely, sensors in your skin send messages to your brain to generate heat to your body.