QUIZ 1: VOLCANO

Which is considered as the most violent eruption exemplified by fragmentation of highly gas charged and viscous magma?

• Phreatic
• Plinian
• Phreatomagmatic
• Strombolian

Which kind of volcanic eruption occurs when hot runny basaltic magmas reach the surface as dissolved gases and lava escape easily?

• Effusive
• Explosive
• Phreatic
• Phreatomagmatic

Which refers to the side of the volcano that radiates from the main vent?

• Base
• Conduit
• Slope
• Vent

Which are mountains with vents and craters that serve as a pathway for lava and molten rocks coming from the magma chamber?

• Hills
• Mountains
• Volcano
• None of the above

Which is a stratovolcano that emits lava and pyroclastic flows?

• Cinder
• Composite
• Lava Domes
• Shield

The Ring of Fire is a zone of high volcanic activity encircling the Pacific Ocean.

• TRUE
• FALSE

Vulcanian is a violent eruption due to the interaction between water and magma.

• TRUE

• FALSE

Cinder volcano are flat and vast volcanoes.

• TRUE

• FALSE

Base is the intrusion between layers of sedimentary rocks.

• TRUE

• FALSE

PHILVOCS stands for Philippine institute of Volcanic and seismology.

• TRUE

• FALSE