A scientist observes a natural flow of water coming out of a hillside. The hillside is lower than the water table. What feature is the scientist most likely observing?

A spring forms where groundwater naturally reaches the land surface and flows out. Because the hillside is below the water table, groundwater can emerge there as a natural flow. An aquifer stores and transmits groundwater, while an artesian well is a human-made well and the unsaturated zone lies above the water table.

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