Question

why are there molten rocks in the interior of the earth​

Answer 1

Respuesta:

Magma originates when the temperature reaches a point in a place in the crust or the upper mantle at which the minerals with a lower melting point begin to melt (the beginning of partial melting of the rocks), however, the melting temperature not only depends on the type of rock, but also on other factors

Explicación:

such as the pressure at which it is found or the presence or absence of water. The increase in pressure in conditions of absence of water makes it difficult to melt, which is why, with depth, the melting temperature of the rocks tends to increase. On the contrary, the presence of water lowers the melting point.