Volcanoes Review

Which of the following would you expect to see during a non-explosive eruption?

• hot debris, ash and gas shooting into the air

• molten rock blowing into the air

• calm flows of thin lava

• violent explosions

Pillow lava is which of the following?

• it has a brittle crust that hurts to walk on

• has a glassy surface with ropy wrinkles

• oozes from a volcano

• forms during underwater eruptions

Lava with a high viscosity....

• is runny almost like water

• is thick like toothpaste

• smells of sulphur

• dries smooth and glasslike

large blobs of magma that harden in the air are called what?

• volcanic ash

• volcanic bombs

• volcanic blocks

• lapilli

Which of the following would you expect after an explosive eruption?

• warmer temperatures

• darkening skies

• calm lava flows

• clear skies

A shield volcano...

• is also called a stratovolcano

• is formed through explosive and non-explosive eruptions

• has gently sloping sides

• forms when lava hits water

A cinder cone volcano .....

• has gently sloping sides

• erodes relatively quickly

• erodes extremely slowly

• has steep sides.

A combination of explosive and non-explosive eruptions will create which of the following?

• shield volcano

• stratovolcanoe

• cinder cone volcano

• caldera

A large depression formed from an emptied magma chamber is called what?

• crater

• vent

• caldera

• rift

Where are volcanoes most likely to form?

• near the center of continents

• along plate boundaries

• in the center of large tectonic plates

• along the equator