Do you have a picture for the question or is there no pictures
It’s B
Reason
It’s increase and decrease
Answer: How explosively or quietly a volcano erupts is not affected by the:
C) concentration of dissolved gases in the magma.
Explanation: Therefore, when a volcano is explosive or less explosive, is as a result of the composition of magmas in different areas or location.
The atmosphere.
It is formed by gasses being pulled toward earth by earths gravity
