Science Quiz 9

What is a collision between two of Earth's tectonic plates, where one plate sinks into the mantle underneath the other plate?

• Erosion

• Subduction

• Weathering

• Explosive Eruption

How many volcanic cones does the volcanic island of Taal have?

• 3

• 5

• 7

• 10

What is the percentage of the world's active volcanoes located in the Pacific Ring of Fire?

• 30%

• 60%

• 90%

• 100%

What is a type of eruption that occurs on the side of the volcano instead of at its summit?

• Magmatic eruption

• Phreatomagmatic eruption

• Effusive eruption

• Flank eruption

_____ is a particular feature of a volcano that occurs when volcanic debris mixes with rainwater.

• Cold lahar

• Hot lahar

• Pyroclastic material

• Pyroclastic flow

What is the largest magnitude under the Volcano Explosivity Index which indicates a Supervolcano?

• Magnitude 4

• Magnitude 6

• Magnitude 8

• Magnitude 10

What functions as the reservoir for lava underneath a volcano?

• Magma chamber

• Magma vent

• Caldera

• Volcanic cone

_____ is the specific reaction that occurs when the rainwater comes into contact with minerals in the rock, causing weathering.

• Physical weathering

• Chemical weathering

• Mechanical weathering

• None of the above

What is the common feature on active volcanoes that involves vent or openings at the surface where volcanic gases are emitted?

• Volcanism

• Geysers

• Diastrophism

• Fumaroles

_____ is a type of volcano that seldomly release molten rocks due to the presence if highly viscous magma.

• Composite volcano

• Lava dome

• Fumaroles

• Submarine volcano