Multiple Choice
Welded tuff consists of ash surrounding large, jagged, irregularly-shaped pieces of material.What is this material and where does it come from?
A) Mineral crystals that formed during cooling
B) Rock fragments that erupted from the volcano
C) Gas pockets from volatiles in the lava
D) Slivers of volcanic glass from the lava
Correct Answer:
Verified
Correct Answer:
Verified
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