Question

1. choose all that apply.

choose two facts about supervolcanoes.
they have erupted more than 100 times.
mount shasta in california is a supervolcano.
they eject approximately 1000 km3 of material.
the yellowstone caldera in the western united states is a supervolcano./span>

Explanation:

• Supervolcanoes are defined as volcanoes that have had an eruption with a Volcanic Explosivity Index (VEI) of 8, which means they eject at least \(1000\ km^{3}\) of material.
• The Yellowstone caldera is a well - known supervolcano. It has had three major eruptions in the past 2.1 million years, and its eruptions meet the criteria for a supervolcano (large - scale ejection of material).

Answer:

• They eject approximately \(1000\ km^{3}\) of material.
• The Yellowstone caldera in the western United States is a supervolcano.