Which of the following best describes the relationship between gas and volcanic eruptions?
A
The more gas magma contains, the more explosive a volcanic eruption will be.
B
The presence
of
gas
in
magma decreases the likelihood of a volcanic eruption.
C
As gas builds up in magma, volcanic eruptions occur once in the magma chamber
and once above ground.
D
Gas found in magma determines only the intensity of eruptions involving
composite volcanoes and not shield volcanoes.