Answer:
the main function of a geographic information system is to present visual data of representation
Explanation:
Magma chamber
central vent
crater
I think
Radical Leadership : Gradpoint.
<span>The angle of dip varies according to
Earth's magnetic field lines. The Magnetic Dip varies with different points on the
planet's surface. Positive values of inclination means that Earth's magnetic
field is pointing downward while negative values indicate that it is pointing
upward.</span>