Tell the text type used in the following:
27. Mayon Volcano, in Bicol Region, is the most active volcano in the Philippines. Its classic,
symmetrical profile, which rises above the Albay Gulf to a height of 2462 m, is the result of a
structurally simple volcano where eruptions have occurred from a single central conduit. Mayon's
frequent historical eruptions, recorded since 1616, have typically included powerful explosive activity
accompanied by pyroclastic flows, mudflows, and lava flows that descended to the lower flanks of
the volcano​