Answer :
In order to change sedimentary rock into igneous rock, the processes involved are heating and cooling. Here's how this transformation occurs:
1. Heating: When sedimentary rocks are buried deep within the Earth's crust, they are subjected to high temperatures due to the geothermal gradient. This heat causes the sedimentary rock to undergo metamorphism, which involves recrystallization of minerals without melting.
2. Cooling: After the heating process, the rocks cool down and solidify to form igneous rocks. This cooling can happen either beneath the Earth's surface, resulting in intrusive igneous rocks, or at the surface, forming extrusive igneous rocks.
By experiencing these processes of heating and cooling, sedimentary rocks can be transformed into igneous rocks. It's important to understand that this transformation is part of the rock cycle, where rocks undergo various changes over time due to geological processes.
