SOLAR SYSTEM

Detailed explanation-1: -The magma, called lava when molten rock erupts on the surface, cools and solidifies almost instantly when it is exposed to the relatively cool temperature of the atmosphere. Quick cooling means that mineral crystals don’t have much time to grow, so these rocks have a very fine-grained or even glassy texture.

Detailed explanation-2: -When magma is ejected by a volcano or other vent, the material is called lava. Magma that has cooled into a solid is called igneous rock. Magma is extremely hot-between 700° and 1, 300° Celsius (1, 292° and 2, 372° Fahrenheit).

Detailed explanation-3: -This magma will also cool, but at a much slower rate than lava erupting from a volcano. The kind of rock formed in this way is called intrusive igneous rock. It intrudes, or pushes, into the earth’s interior and cools beneath the surface.