Which is the correct breakdown and translation of the medical term craniosynostosis?

Craniosynostosis is the premature melding of the sutures or the fibrous joints of the skull.  It is a medical condition where the fibrous sutures  in an infant undergoes untimely ossification.

Cranio means the skull. Syn means "as one". Ostosis means a condition relating to bone.

volcanoes (an event in the geosphere) release a large amount of particulate matter into the atmosphere. these particles serve as nuclei for the formation of water droplets (hydrosphere). rainfall (hydrosphere) often increases following an eruption, stimulating plant growth (biosphere).

the answer is d. exposing corruption in the church