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- 1. Multiple Choice
What is a dormant volcano?
molten rock
the center of a volcano
will never erupt again
a volcano that is sleeping, but could erupt agian
- 2. Multiple Choice
What is magma?
pieces of the Earth's crust
molten rock inside of a volcano
small rock
plates that meet
- 3. Multiple Choice
What is lava?
Molten rocks inside a volcano
Molten rock outside a volcano
small rocks
magma
- 4. Multiple ChoiceA dead volcano is called what?activedormantextinct
- 5. Multiple ChoiceWhich of the following terms are used to describe a volcano that may erupt at any time?Dormant volcanoActive volcanoExtinct volcanoShield volcano
- 6. Multiple Choice
Magma becomes lava when it reaches a volcano's ______.
Vent
Crater
Chamber
Mantle
- 7. Multiple Choice
In a volcano, magma collects in a packet called ________.
Magma flow
Magma chamber
Magma pipe
Hot spot
- 8. Multiple Choice
A ______ is a duct connecting the magma chamber and the outside of the volcano.
Vent
Crater
Lava flow
Volcanic cone
- 9. Multiple Choice
An opening on the Earth's crust through which hot molten rock flows out from deep inside the Earth.
Volcano
Fault line
Fold
Crater
- 10. Multiple Choice
Rank the volcanic stages from LEAST likely to MOST likely to erupt.
active, dormant, extinct
extinct, dormant, active
dormant, extinct, active
dormant, active, extinct
- 11. Multiple Choice
Why does the volcanic eruption happen ?
When the pressure on magma chamber inside earth increase and push magma to the surface.
When it formes by eruption lava and ash.
when rock underground suddenly breaks along a fault.
- 12. Multiple Choice
A volcano is a mountain that has an opening to allow hot vapor, and gas to escape from the pool of magma below.
True
False
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