Earth Science Unit 7 Quizzizz

The most explosive volcanoes are

• shield volcano

• composite volcano

• flood basalt volcano

1. What forms when magma hardens in a volcano’s pipe; softer rock around pipe wears away exposing hard rock

• Volcanic Neck

• Sill

• Dike

Where do most volcanoes form?

• at plate boundaries

• at hot spots

• away from plate boundaries

What formed when magma forces itself across rock layers and hardens?

• batholtih

• Sill

• Dike

Which of the following forms when the top or side of a volcano collapses into the magma chamber?

• Conduit

• Vent

• Caldera

What formed when magma squeezes between horizontal layers of rock

• batholtih

• Sill

• Dike

_________________ form(s) where plates move apart.

• Convergent volcanism

• Hot spots

• Divergent volcanism

________________________ form(s) where plates move toward each other.

• Convergent Volcanism

• Hot Spots

• Divergent Volcanism

1. What forms when an uplift pushes a batholith or smaller body of hardened magma toward the surface?

• lava plateau

• dome  mountain

• volcanic neck

Volcanoes that form far from plate boundaries are associated with what?

• Convergent Volcanism

• Hot Spots

• Divergent Volcanism