The Pacific Ring of Fire

When gas, ash, and hot melted rock from the Earth's mantle come out through an opening in the crust, this is called...

• a volcanic eruption

• a tectonic explosion

• a volcanic quake

• a tsunami

What is the Pacific Ring of Fire?

• An area around the Pacific Ocean where there are many volcanoes and earthquakes

• A group of islands in the middle of the Pacific Ocean where there are many fires

• A deep volcanic trench in the middle of the Pacific Ocean

What percent of the world's active volcanoes are found in the Pacific Ring of Fire?

• 75%

• 100%

• 50%

• 25%

Plate boundaries where tectonic plates crash into each other are called:

• Divergent Boundaries

• Convergent Boundaries

• Transform Boundaries

• Hot Spots

What happens at CONVERGENT boundaries? Select all the true statements.

• heavier plates slip under lighter plates

• the rock on the bottom melts into magma

• the magma erupts into volcanoes

• the two plates get stuck as the slip past each other

Boundaries where tectonic plates pull apart from each other are called...

• Divergent Boundaries

• Convergent Boundaries

• Transform Boundaries

• Hot Spots

What happens and DIVERGENT boundaries? Select all true statements.

• plates pull away from each other

• magma come up from the mantle to fill the space

• ocean water cools the magma and new crust is formed

• a heavier plate slides under a lighter plate

Boundaries where tectonic plates slide past each other and cause earthquakes are called...

• Divergent Boundaries

• Convergent Boundaries

• Transform Boundaries

• Hot Spots

Areas where the mantle is especially hot and rising melted rock break through cracks in the crust are called...

• Divergent Boundaries

• Convergent Boundaries

• Hot Spots

• Transform Boundaries

Volcanic islands in the middle of a tectonic plate, like the Hawaiian islands on the Pacific plate, are likely examples of...

• Convergent Boundaries

• Divergent Boundaries

• Transform Boundaries

• Hot Spots