2. The composition of magma is determined by several things
including
A. the amount of partial melting of the original rock
B. the eruption style.
C. the type of volcano it erupts from.
D. None of these
3. The higher the viscosity of a magma, the higher its content of
A. Iron
C. nickel
B. Silica
D. Gases
4. The style of a volcanic eruption depends on
A. the steepness of the volcano's slopes.
B. the viscosity of the magma.
C. whether the volcano is dormant.
D. the location of the volcano.
5. A volcano that has had no activity for quite a long time is said to
be
A. Active
C. Extinct
B. Sleeping
D. Dormant​