Volcanoes Quiz

Which of the following factors associated with huge volcanic eruptions may cause the decrease in the Earth’s average temperature for a few years?

• heat

• light

• acid rain

• volcanic ash

Which is NOT an external part of a volcano?

• base

• crater

• slope

• summit

Which characteristic of magma mainly determines its explosiveness?

• amount

• color

• temperature

• silica content

Which of the following is an active volcano in the Philippines?

• Apo in Davao

• Bagacay in Camarines Norte

• Isarog in Camarines Sur

• Taal Volcano in Batangas

Which property of a material refers to the material’s resistance to flow?

• heat

• pressure

• temperature

• viscosity

Aside from Mayon Volcano, what other Philippine volcano that has erupted recently?

• Bulusan

• Canlaon

• Pinatubo

• Taal

Which of the following characteristics of a volcano depends on its magma emission?

• age

• location

• size

• shape

How does a cinder cone volcano form? By the accumulation of the ________

• emission of lava

• ejected lava fragments

• molten magma which has high silica content

• alternate solidification of lava and pyroclastic deposits

What causes a shield volcano to be shaped like a broad dome? It is formed from ______________.

• the emission of lava

• ejected lava fragments

• molten magma which has high silica content

• alternate solidification of lava and pyroclastic deposits

Why does a thick layer of volcanic ash can be heavy enough to collapse the roofs of buildings? It is because ash ________.

• is solid

• cannot be blown by winds

• becomes heavier as it cools

• consists of tiny fragments of rocks that becomes heavy as they pile up