What controls the style of a volcanic eruption?

Foremost of these are magma viscosity, gas loss and external properties such as conduit geometry. Ultimately, these parameters control the speed at which magmas ascend, decompress and outgas en route to the surface, and thus determine eruptive style and evolution.

read the sentence below and answer the question that follows. one of the norms in the village was to meet at the town square on fridays for a community dinner and dance. the underlined word in the sentence above is best defined as a a. cultural element shared by all people around the world b. specific area in a town used for traditional community events c. religious custom accepted and practiced by all members of a village d. behavioral pattern that is regularly accepted by a group of people