<span>Basaltic magma which is made of silica compounds is the source of the the lava that flows and is erupted from Volcanoes in the state of Hawaii. The amount of silica in each batch may differ, but it remains true that Hawaiian magma is basaltic.</span>
<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>
C- Mariana Trench. It’s the only different form the rest. The others are a consequence of plates subduing or getting under another plate and pushing up.
Movement because movement is the moving of ideas , goods and much more
