Answers (2)
Igneous rocks are called fire rocks and are formed either underground or above ground. Underground, they are formed when the melted rock, called magma, deep within the earth becomes trapped in small pockets. As these pockets of magma cool slowly underground, the magma becomes igneous rocks.
Igneous rocks are also formed when volcanoes erupt, causing the magma to rise above the earth's surface. When magma appears above the earth, it is called lava. Igneous rocks are formed as the lava cools above ground.
Forming of rocks depends on its kind.There are 3 kind of rocks that I know
1.Sedimentary Rock-This rocks is form sedimentation under the bodies of water from different sediments that is hardened and formed through out the years and became rocks.
2.Igneous rock-This rocks is formed through fire or under the magma that has 2 kinds the intrusive and extrusive.That is formed through molten materials.
3.Metamorphic-is kind of rock that is in the formed of sedimentary and igneous but have been transformed because of some aspects