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- 1. Fill in the Blank
____________ is a dense, destructive mass of very hot ash, lava fragments, and gases ejected explosively from a volcano and typically flowing down slope at great speed.
- 2. Multiple Choice
What are the different types of pyroclastic flow?
Soufriere
Pele
Merapi
Lapili
Pelee
- 3. Fill in the Blank
___________ is a hot mixtures of fresh lava, gas, rock, pumice, and ash that moves down the sides of a volcanic crater at high speeds during an eruption. It is considered as the most harmful hazard in a volcanic eruption.
- 4. Fill in the Blank
Write one effect of pyroclastic flow.
- 5. Fill in the Blank
_______falls refers to volcanic rock and lava materials that are ejected into the air by explosions or carried upward by the eruption column’s hot gases or lava fountains.
- 6. Fill in the Blank
Ash and Lapili is a type of ________.
- 7. Multiple Choice
Choose all the types of lapili.
Pele's tears
Pele's hair
Pele's eyes
Scoria
Pumice
- 8. Multiple Choice
It refers to the rocks that an erupting volcano may hurl into the air. These blocks and bombs travel like cannonballs and usually land within 2km of the vent.
Tephra Falls
Ballistic Projectiles
Lahar
Volcanic Debris Avalanche
- 9. Open Ended
Summarize the story of Omayra Sanchez.
- 10. Fill in the Blank
A _____is a process where in wet cement-like mixture of volcanic material and water flows down the slopes of a volcano.
- 11. Multiple Choice
In ________ language, Lahar means lava or lava flow.
Japanese
Javanese
Chinese
Indian
- 12. Fill in the Blank
Landslides that occur in volcanic slopes.
- 13. Fill in the Blank
A debris avalanche occurred from Mt. Mayuyama in the year _______.
- 14. Multiple Choice
True or false: Lahars can be detoured.
True
False
- 15. Fill in the Blank
What is the most effective way to minimize the hazard of Volcanic Debris Avalance?
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