Magmas have a variety of chemical compositions because Choose one: they can incorporate chemicals from the surrounding rock. magmas become more mafic as they cool. different magmas formed in different locations are isolated and never mix. the minerals in the rocks that form magma all melt at the same time.

Explanation: molten magma is formed when rocks within the earth crust melt and since the rocks contain some nutrients they tend to melt with the rocks.

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bharathparasad577 bharathparasad577 · Answer 2 · 2022-06-14T18:44:03+02:00

The correct answer is, that the minerals in magma-forming rocks all liquefy simultaneously.

How does magma form?

As the higher-density- tectonic plate subducts, submerges below, or the less dense tectonic plate subducts, hot rock from below can dwell in the cooler plate above.
The temperature gradient and the formation of magma are both involved in this process. Over millions of years, the magma in this subduction zone has the potential to form a series of active volcanoes known as a volcanic arc.
Melts can originate from several sources. Source rocks undergo varying degrees of partial melting, producing magmas with different compositions than the rock.

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