A hydrologist collects a sample of groundwater from the coast and another from an aquifer, away from the coast. How could there be a major difference in salinity.

a mid-ocean ridge or mid-oceanic ridge is an underwater mountain range, formed by plate tectonics. this uplifting of the ocean floor occurs when convection currents rise in the mantle beneath the oceanic crust and create magma where two tectonic plates meet at a divergent boundary.a geomagnetic reversal is a change in a planet's magnetic field such that the positions of magnetic north and magnetic south are interchanged.

these include the fossil fuels, oil, natural gas, and coal and nuclear energy. hope this ! ^.^

-ella