Volcanoes Quiz

IDENTIFICATION

In the volcano model experiment, what is the byproduct of the vinegar+baking soda reaction?

PHIVOLCS is a service institute of the Department of Science and Technology that is principally mandated to mitigate disasters that may arise from volcanic eruptions, earthquakes, tsunamis, and other related geotectonic phenomena. What does "S" stands for in PHIVOLCS.

 

Based on the frequency of eruptions, which type of volcano should be omitted from the list below?

• dormant

• composite

• active

• extinct

Based on recorded eruptions, which type of volcano causes the most violent eruptions?

• composite

• shield

• cinder cones

• caldera

Where are most volcanoes found?

• at the equator

• continental plates

• arctic ocean

• tectonic plate boundaries

The place where two plates collide is called _____.

• convergent plate boundary

• divergent plate boundary

• transform

• shear

Why are people advised to avoid rivers during a volcanic eruption?

• Lava from the volcano might cause river water to boil.

• Lahar flow might wash away the bridge.

• During prolonged rains, mudflows from the volcano tend to follow river valleys.

• People are supposed to stay indoors unless there is a danger that the roof of their house will collapse.

What region of the earth is the source of magma?

• lithosphere

• asthenosphere

• Earth's core

• mantle

Which of the following volcanoes is NOT a stratovolcano?

• Mt. Krakatoa

• Soufrière Hills

• Mauna Loa

• Mayon

Volcanic eruptions release these gases EXCEPT ______.

• Water vapor

• Sulfur dioxide

• Nitrogen

• Carbon dioxide