Add spaces: Atfirstunobservable,microscopicdimensions,damagedareasarerapidlyincreasingbygrowing.Marginsturnbrown,forinstanceliketheendofatornleaf.

Answer: At first unobservable, microscopic dimensions, damaged areas are rapidly increasing by growing. Margins turn brown, for instance like the end of a torn leaf.

Add spaces: User'snumberwillincreaseverymuchinthenearfuture.

Answer: User's number will increase very much in the near future.

Add spaces: 03-07-2017TourdeFrance-Sammendrag

Answer:
03-07-2017 Tour de France - Sammendrag