10
QuizMultiple Choice

Igneous Rock — Quiz

Question 10 • Earth and Space Science

Which statement best explains why no measurable cavities were recorded in the seafront sample open paren cap k minus 4 close paren ?

Answer
A
The magma cooled so rapidly that bubbles could not expand before solidifying.
B
Gas was completely lost through venting before eruption.
C
High pressure prevented gas release from the magma.
D
The magma contained unusually high silica, blocking vesicle formation.