Add spaces: FordownloadingfullCDandDVDimagestheuseofbittorrentorjigdoisrecommended.

Answer: For downloading full CD and DVD images the use of bittorrent or jigdo is recommended.

Add spaces: TheUnitedStatesisfallingfurtherbehindinthecleanenergyrace.

Answer: The United States is falling further behind in the clean energy race.

Add spaces: BelongstothecoredevicesoftheJABLOTRON100securitysystem.

Answer:
Belongs to the core devices of the JABLOTRON 100 security system.