Science

Confining the pressure ________ as a result of decompression from the magma
Cools
Increases
Decreases
Vapor pressure increases because the magma ______
Cools
Warms
Explodes
When the vapor pressure becomes greater than the confining pressure, magma _____ toward from a higher point to a ______ point pressure
Rises, Stop
Rises, Lower
Explodes, Higher
Dissolved gas is allowed to expand and forms small gas ________ called vesicles in the _______
Chunks, Crater
Bubbles, Crater
Bubbles, Magma
 
These vesicles make the magma _____ dense than the surrounding rock, which may allow the magma to move ________
More, Downward
Less, Upward
Less, Downward
 
The _______ the silica content, the more ________ the eruption
Higher, Explosive
Higher, Effusive
Lower, Explosive
The greater the _______ gases, the less viscous the _______
Dissolved, Lava
Dissolved, Explosion
Solved, Eruption
VEI: Volcanic Explosivity Index VONA:_________
Volcanoes Of Notification and Aviation
Volcanic Observatory Notification for Aviation
Volcanoes to Observe Notification and Aviation
Throat: Entrance Flank: ______
Passageway
Obstacle
Side
Alert Level 4: Possible withing days Alert Level 3: ________
Possible within months
Possible within weeks
Possible within 3 days
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