Which of the following is not true about a gis:

(a) a gis is a computer based map.
(b) a gis is an information management tool.
(c) a gis communicates directly with a network of satellites to locate your position on earth.
(d) gis can be applied to many different academic majors.

(C) A GIS communicates directly with a network of satellites to locate your position on earth.

Explanation:

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.