Earth's mantle plays an important role in the evolution of the crust and provides the thermal and mechanical driving forces for plate tectonics. Heat liberated by the core is transferred into the mantle where most of it (> 90%) is convected through the mantle to the base of the lithosphere.
I think answer might be d.
Answer:
Their minerals change
Explanation:
When they become metamorphic rock they are going through severe heat, causing the minerals to change.
The endosymbiotic theory states that eukaryotic cells might have evolved from prokaryotic cells through a close realtionship.
