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What provides the force that causes magma to erupt to the surface?
physical and chemical properties
dissolved gases trapped in the magma
the amount of silica in the magma
volcanic ash
ability to burn
pyroclastic flows
silica
It is a good source of geothermal energy.
Which of the following volcano hazards is make up of rocky particles about the size of a grain of sand?
physical and chemical properties
dissolved gases trapped in the magma
the amount of silica in the magma
volcanic ash
ability to burn
pyroclastic flows
silica
It is a good source of geothermal energy.
If geologists detect many small earthquakes in the area near a volcano, what can they infer about the volcano?
physical and chemical properties
dissolved gases trapped in the magma
the amount of silica in the magma
volcanic ash
ability to burn
pyroclastic flows
silica
It is a good source of geothermal energy.
What can be used to identify a substance or to predict how it will behave?
physical and chemical properties
dissolved gases trapped in the magma
the amount of silica in the magma
volcanic ash
ability to burn
pyroclastic flows
silica
It is a good source of geothermal energy.
All of the following are examples of physical properties EXCEPT
physical and chemical properties
dissolved gases trapped in the magma
the amount of silica in the magma
volcanic ash
ability to burn
pyroclastic flows
silica
It is a good source of geothermal energy.
The main hazard from a quiet volcanic eruption is
physical and chemical properties
dissolved gases trapped in the magma
the amount of silica in the magma
volcanic ash
ability to burn
pyroclastic flows
silica
It is a good source of geothermal energy.
Which of the following helps to determine how easily magma flows?
physical and chemical properties
dissolved gases trapped in the magma
the amount of silica in the magma
volcanic ash
ability to burn
pyroclastic flows
silica
It is a good source of geothermal energy.
The major ingredient of magma is
physical and chemical properties
dissolved gases trapped in the magma
the amount of silica in the magma
volcanic ash
ability to burn
pyroclastic flows
silica
It is a good source of geothermal energy.
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