L9 ES Homework

Where are most volcanoes located on Earth?

• Deep within continental landmasses

• Along the boundaries where tectonic plates meet

• Exclusively on the ocean floor

• Randomly distributed across the planet

Which of the following is NOT a major type of volcano mentioned in the video?

• Stratovolcanoes

• Shield volcanoes

• Cinder cones

• Calderas

What is molten rock called once it escapes through vents in the Earth's crust and flows above ground?

• Magma

• Ash

• Lava

• Pyroclastic flow

How does the Volcanic Explosivity Index (VEI) scale measure the power of eruptions?

• Each magnitude is 2 times more powerful than the one before it.

• Each magnitude is 5 times more powerful than the one before it.

• Each magnitude is 10 times more powerful than the one before it.

• The scale measures power linearly, not logarithmically.