GEOLOGY

Detailed explanation-1: -Scientists use the term magma for molten rock that is underground and lava for molten rock that breaks through the Earth’s surface.

Detailed explanation-2: -Magma is extremely hot liquid and semi-liquid rock located under Earth’s surface. When magma flows onto Earth’s surface, it is called lava.

Detailed explanation-3: -When magma reaches Earth’s surface and erupts from a volcano, it becomes lava.

Detailed explanation-4: -Magma is a molten and semi-molten rock mixture found under the surface of the Earth. This mixture is usually made up of four parts: a hot liquid base, called the melt; minerals crystallized by the melt; solid rocks incorporated into the melt from the surrounding confines; and dissolved gases.

Detailed explanation-5: -The molten material in the mantle of the Earth is called magma. Sometimes when magma breaks the surface, as in volcanic eruptions, it is called lava.