Water vapor is the most abundant gaseous component dissolved in most magmas.

Question

Quizplus · Accepted Answer

Water vapor is indeed the most abundant gaseous component present in most magmas. During magma formation, water from the surrounding rocks and minerals is incorporated into the magma, and as the magma rises to the surface, the decrease in pressure causes some of the dissolved water to vaporize, creating bubbles and increasing the magma's explosive potential.

Water Vapor Is the Most Abundant Gaseous Component Dissolved in Most