Geologists Also Study : 3) a Meteorology, to understand: Stream flow Groundwater levels Oceanography, to understand Seafloor's role in plate tectonics ShorelinesGeologists Also Study : (3) ◼ Meteorology, to understand: ◼ Stream flow. ◼ Groundwater levels. ◼ Oceanography, to understand: ◼ Seafloor’s role in plate tectonics. ◼ Shorelines