Final answer:
In Earth Science, the melting of minerals in a mixture is studied. Mixtures of silicate minerals do not have a single melting point, but a range of temperatures over which melting occurs.
Step-by-step explanation:
The subject of this question is Earth Science.
In Earth Science, we study the properties and processes of the Earth, including the various minerals that make up the Earth's crust. One aspect of Earth Science that relates to this question is the melting of minerals in a mixture.
When it comes to mixtures of silicate minerals, they do not have a single melting point but instead have a range of temperatures over which melting occurs. This is due to the different compositions and structures of the minerals. For example, in a mixture of silicate minerals, some minerals can start melting at a lower temperature while others may require higher temperatures.