It is called seismic waves. That should help:)
Answer:
Magmas are mainly liquid and contain dissolved fluids such as water, most are less dense than the adjacent solid rock and so move upward.
Explanation:
Magma -
It is a semi solid particle and the igneous rocks are formed from magma .
Magma is basically found inside the surface of the Earth and may come out from Volcanoes , due to any tectonic movements .
The composition of magma is basically molten form of rock along with gas bubbles and some crystals .
The magma is very dense in nature and slightly viscous and hence can flow , being semi - solid in nature .
