Add spaces: Theseconditionsbothadvancesandextendsthetimeoftheimmediatelyvisiblepresenceofthesecelestialbodiesinthesky.Geographically,thebattlefieldofJoshuaissituated600metresabovesealevel.
These conditions both advances and extends the time of the immediately visible presence of these celestial bodies in the sky. Geographically, the battlefield of Joshua is situated 600 metres above sea level.