Magma formation is the process where solid rock deep underground melts and becomes magma, which is molten rock beneath the Earth’s surface. When rocks melt due to heat, pressure, or the presence of water, they turn into this hot, thick liquid called magma. Magma is what eventually causes volcanoes to erupt when it reaches the surface and becomes lava.Where does Magma form?Magma forms deep within the Earth's crust and upper mantle, usually in three main places:Subduction Zones – Where one tectonic plate sinks beneath another, like near the Pacific "Ring of Fire".Mid-Ocean Ridges – Where tectonic plates pull apart and magma rises to fill the gap (like in the Atlantic Ocean).Hotspots – Fixed areas in the Earth’s mantle where magma rises, like in Hawaii or Yellowstone.