Dissolved gases may compose up to a few percent by weight of a magma.

Question

Quizplus · Accepted Answer

It is true that dissolved gases, such as water vapor, carbon dioxide, and sulfur dioxide, can make up a significant portion of a magma's weight, sometimes ranging from less than 1% to up to a few percent. These dissolved gases can play a crucial role in determining a magma's properties and behavior, such as its viscosity, explosive potential, and ability to degas or erupt.

Dissolved Gases May Compose Up to a Few Percent by Weight