CLEAN : Fire at industrial waste plant near Barcelona is now controlled (fire department)

The video tutorial covers various topics including star control, the evolution of Modelco Controlado, understanding tenure, and a demonstration of armor exposure by Fiona. It concludes with final thoughts and a summary of the discussed concepts.

What does the speaker mean by 'demos exposure on the armor'?

What significance does the phrase 'The one over last explosion' hold in the context of the discussion?