__________ Is Lava with a Jagged, Broken Surface

Q19: A shield volcano commonly erupts when:<br>A) basaltic

Q20: A/an _ is a crater formed by

Q21: About 75 percent of the Earth's volcanic

Q22: A chaotic mixture of volcanic ash and

Q23: Continental crust is typically of _ composition.<br>A)

Q25: A granitic pluton that is exposed for

Q26: Pahoehoe lava cools and stiffens as it

Q27: Yellowstone Park is an example of three

Q28: Typical granitic magma contains _ silica and

Q29: Granitic magma contains up to _ percent