Once magma reaches the Earth's surface it is called ____.

Explosive eruptions occur if a volcano's magma is:

What provides the force that causes a volcano to become explosive?

Volcanoes with steep sides made of layers of ash is called ____.

Tall, cone-shaped mountains made of both cooled lava layers and layers of ash are called

What do we call molten hot liquid rock while it is still below the Earth's surface?

What volcanoes are described as having a wide base?

A dead volcano is called _____

A sleeping volcano is called ______

Approximately 70% of the world's composite volcanoes are located around the Pacific Ocean in a region called the ____________. 

What energy can be tapped from a volcano?

The following are the three stages of volcano life cycle except_________________.

Volcanoes are found:

Where do volcanoes form?

Geothermal resources include all of the following except:

Geothermal energy depends on weather conditions.

It refers to the energy produced from the internal heat of the Earth

The top of the main vent where lava flows through is the ___

The source of all lave is _____