Volcanoes and Plate Tectonics Quiz

How many active volcanoes are there on Earth today?

• 500

• 600

• 700

• 800

Most volcanoes form along:

• Mountain ranges

• Tectonic plate margins

• Deserts

• River valleys

What happens at a destructive plate margin?

• Two plates move apart

• An oceanic plate sinks under a continental plate

• New crust forms instantly

• No volcanic activity occurs

The Ring of Fire is known for:

• Having no volcanoes

• Containing 75% of the world's active volcanoes

• Being the coldest place on Earth

• Only having extinct volcanoes

Hot spot volcanoes form:

• Only at plate boundaries

• Away from tectonic plate boundaries

• Only underwater

• Only in deserts

Fill in the Gaps (Present Simple): A volcano is a rupture in the Earth’s (a)   , where molten rock escapes.

Fill in the Gaps (Present Simple): The lithosphere consists of the Earth’s crust and the upper (a)   .

Fill in the Gaps (Present Simple): At a constructive plate margin, two (a)   move away.

Fill in the Gaps (Present Simple): About 90% of the most powerful volcanic eruptions since 1850 happen in the (a)   .

Fill in the Gaps (Present Simple): Hot spot volcanoes, like those in Hawaii, form when magma rises through the middle of a (a)   .