Complex sentence: Tectonics (from the Vulgar Latin "tectonicus", meaning "building") is concerned with the orogenies and tectonic development of cratons and tectonic terranes as well as the earthquake and volcanic belts which directly affect much of the global population.
Split into simpler sentences: Tectonics (from the Vulgar Latin "tectonicus", meaning "building"). Tectonics is concerned with the orogenies and tectonic development of cratons and tectonic terranes as well as the earthquake and volcanic belts which directly affect much of the global population.