Calculate the area of a map whose length is 6cm and width 4cm the map scale given is 2cm to or 1:50,000

Ascientist observes hot water erupting from a vent in the earth. what most likely caused the water to rise and erupt from the vent? the vent was lower than the water table. a well was drilled into a pressurized aquifer. a well with a mechanical pump was installed. the water was heated by magma or hot rocks.