What caused the many small holes that are seen in this sample of scoria?
A) impacts by volcanic bombs
B) dissolving away of minerals
C) degassing of volatiles
D) raindrops
Correct Answer:
Verified
Q14: The Columbia Plateau in the northwestern United
Q15: A volcanic island arc is the result
Q16: Q17: Three of the following statements about the Q18: _ tend to increase the explosive potential Q20: If you want to melt a rock, Q21: Gases like water vapor or carbon dioxide Q23: Eruption columns would be more likely to Q24: How do calderas form? Q63: Crater Lake in Oregon actually occupies a
A)collapse of a partially
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