5.)These are the fragments of lava that are thrown into the air and change into rocks as it reaches the ground?
A. Pyroclastic materials B.Tephra C. Magma
6.) Who are the people who study the volcanoes?
A. Seismologist B.Geologist C. Volcanologist
7.) What government agency monitors the Volcanoes and their eruptions?
A. Seismology B. PHIVOLCS C. PAG-ASA
8.) What do you call the volcanoes that have erupted within 600 years?
A.Active B. Dormant C.Extinct​