Add spaces: ...towelcomedelegatesfromtheSociety'snewSectioninWroclaw.ThemeetingconsidersthevigorousstartoftheWroclawmathematicalcentre'sactivities,andthepresenceofitsdelegatesnotonlyasamanifestationofthereturnoftheWesternTerritoriestoPoland,butalsoasaproofoftherebirthofPolishcultureinthoseterritories.

Answer: ... to welcome delegates from the Society's new Section in Wroclaw. The meeting considers the vigorous start of the Wroclaw mathematical centre's activities, and the presence of its delegates not only as a manifestation of the return of the Western Territories to Poland, but also as a proof of the rebirth of Polish culture in those territories.

Add spaces: Publichealthisaffectedbyawholerangeofenvironmentalfactors:

Answer: Public health is affected by a whole range of environmental factors:

Add spaces: Maycontaintracesofsoy,nutsandsesame.

Answer:
May contain traces of soy, nuts and sesame.