Multiple Choice
The difference between tephra and tuff is that ____________.
A) tephra is created in ash falls,whereas tuff is created in pyroclastic flows
B) tephra is unlithified,whereas tuff is lithified
C) tephra is always silicic,whereas tuff is always basaltic
D) All of the above are correct.
Correct Answer:

Verified
Correct Answer:
Verified
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