Pumice is ____

a. ?created in explosive eruptions involving viscous magma and high amounts of volatiles
b. ?the solidified form of a lahar that has reached the sea
c. ?compacted volcanic ash
d. ?“clinkers” of basalt formed in slow lava flows
e. ?created in slow eruptions involving fluid magma and low amounts of volatiles


ANSWER: a

Environmental & Atmospheric Sciences

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