Q: Remove the spaces from the following sentence: Involved in European cooperation since 1991, Delphis has led or been participating in more than 30 European projects, many of which focus on the topic of energy savings in social housing.
A: [InvolvedinEuropeancooperationsince1991,Delphishasledorbeenparticipatinginmorethan30Europeanprojects,manyofwhichfocusonthetopicofenergysavingsinsocialhousing.]

Q: Remove the spaces from the following sentence: For example, the concentration of nitrate is 8 times higher in worm casts than in the surrounding soil.
A: [Forexample,theconcentrationofnitrateis8timeshigherinwormcaststhaninthesurroundingsoil.]

Q: Remove the spaces from the following sentence: However, it is certainly fair to say that by 1939 Tarski had an outstanding international reputation but was still forced to support himself by teaching mathematics in a high school.
A: [However,itiscertainlyfairtosaythatby1939Tarskihadanoutstandinginternationalreputationbutwasstillforcedtosupporthimselfbyteachingmathematicsinahighschool.]

Q: Remove the spaces from the following sentence: This information could come from green accounts or from companies' environmental management systems.
A:
[Thisinformationcouldcomefromgreenaccountsorfromcompanies'environmentalmanagementsystems.]