As magma rises, pressure, causing dissolved gases to expand and form bubbles. The size of the bubbles increases, exerting a lot of force. The force of the expanding gases pushes the magma from theup through the. Molten rock and gas explode through the, which is at or near the top of the volcano.

The incident command system (ics) is: a. most applicable to the management of complex incidents that extend over many hours or days. b. a military system used in domestic incidents to ensure command and control of federal resources. c. a standardized management tool for meeting the demands of small or large emergency or nonemergency situations. d. a relatively new approach created based on the lessons learned from hurricane harvey disaster operations.