First, the magma inside the magma chamber heated and as it rises it forms Gas bubbles. When more and more gas bubbles are trapped it increases in pressure that will create fracture. From that fracture lava, rocks, ash and dust are ejected from the volcano.
In an explosive eruption, the magma rises fast, allowing a build-up of gas pressure within the gas bubbles that leads to rapid bubble growth, abrupt fragmentation, and explosive release of gas pressure.
In effusive eruptions, they argue, continuous, repeated fragmentation during the magma's rise to the surface would break gas bubbles and allow the release of significant amounts of gas before the magma reaches the surface, leaving little for an explosion.
In other words, volcanoes explode only when the release of gas by continuous and repeated non-explosive fragmentation during the magma's rise to the surface cannot keep up with the growth of bubbles.
Answers & Comments
Answer:
D C. B A. E
Explanation:
First, the magma inside the magma chamber heated and as it rises it forms Gas bubbles. When more and more gas bubbles are trapped it increases in pressure that will create fracture. From that fracture lava, rocks, ash and dust are ejected from the volcano.
Answer:
A. 4
B. 3
C. 2
D. 1
E. 5
Explanation:
In an explosive eruption, the magma rises fast, allowing a build-up of gas pressure within the gas bubbles that leads to rapid bubble growth, abrupt fragmentation, and explosive release of gas pressure.
In effusive eruptions, they argue, continuous, repeated fragmentation during the magma's rise to the surface would break gas bubbles and allow the release of significant amounts of gas before the magma reaches the surface, leaving little for an explosion.
In other words, volcanoes explode only when the release of gas by continuous and repeated non-explosive fragmentation during the magma's rise to the surface cannot keep up with the growth of bubbles.