Volcanoes and Earthquakes

What causes most volcanoes?

• the movement of tectonic plates
• pressure from under the Earth
• the ocean pushing down 
• magma near the crust

Vocanoes are found...

• on land
• under water
• on islands
• all of the above

When magma comes out of a volcano it is called...

• fire
• lava
• smoke
• igneous

Where do most volcanoes occur?

• Hawaii
• Indonesia
• Ring of Fire
• The Atlantic Ocean

Which of the following is an opening through which molten rock and gas leave a volcano

• pipe
• magma chamber
• crater
• vent

A composite volcano is  tall, cone-shaped, and made up of alternating layers of lava and ash.

• true
• false

Which is a wide, gently sloping mountain formed by thin layers or lava that pour out of a vent and harden on top of previous layers?

• cinder cone
• composite
• shield
• dome mountain

The movement in the mantle which causes tectonic plates to move is best described as:

• ductile mantle
• magma chamber
• hot liquid
• convection currents

What do you call melted rock below the Earth's surface?

• epicenter
• fault
• focus
• magma

When a volcano erupts quietly, what kind of landform forms?

• shield volcano
• cinder cone volcano
• composite volcano
• lava plateau