Here's the completed sequence of transformations for sedimentary rock:
Sedimentary rock is pulled into Earth's interior by tectonic forces.
Later, heat rising from below causes part of the sedimentary rock to melt, forming magma.
The magma is uplifted to Earth's surface, where it cools and solidifies to form igneous rock, which erodes to form new sediment.
So the correct answers to fill in the missing steps are:
- sedimentary rock
- magma
- igneous rock