What is the fundamental process responsible for the formation of all igneous rocks?

The process of compacting and cementing layers of sand, mud, and organic debris over millions of years.

The transformation of existing rocks by intense heat and pressure without melting.

The cooling and solidification of molten rock from magma or lava.

The erosion and transport of rock particles by wind and water.

What is the primary source of energy that creates the high-temperature conditions in magmatic environments?

Solar energy that drives weather systems on the surface.

Heat originating from deep within Earth's interior.

Frictional forces generated by glaciers moving over land.

Chemical reactions occurring within the oceans.

The immense pressure from overlying rock layers compacting loose sediment together into a solid mass.

The rapid freezing of water trapped inside rock fissures.

Temperatures becoming hot enough to exceed the melting point of rock.

The chemical alteration of minerals by acidic groundwater.

The deposition of sand and silt layers carried by ancient underground rivers.

The weathering and breakdown of rock by plant roots and microbes.

The compaction of loose gravel into a solid conglomerate rock.

The melting of solid rock to form new magma.

Because its steep slopes are formed by rapid wind and water erosion.

It is a direct conduit for magma from inside the Earth to reach the surface.

Because the intense pressure inside can transform sedimentary rock into metamorphic rock.

Because it releases large amounts of steam and gas into the atmosphere.