How Do Volcanic Bombs Originate

Multiple Choice

How do volcanic bombs originate?

A) as ash particles that join together in the eruptive plume and fall as cobble- sized objects
B) as blocks of old shattered volcanic rock ejected from an erupting volcanic crater
C) as high temperature residue violently expelled from the melting region, all the way up the volcanic conduit
D) as semi- molten magma blobs that get erupted, streamlined, and partly congeal before falling to the ground