input question: Fix spacing: Studiesofdioxinintheproximityoflargefires,wherelargeamountsofPVChavebeenburned,showthatsubstancesemittedfromafirespreadoveralargeareaandwillonlyveryrarelyleadtopollutionofthesurroundingareastoanextentthatcanaffectthehealthofthelocalpopulation.

output answer: Studies of dioxin in the proximity of large fires, where large amounts of PVC have been burned, show that substances emitted from a fire spread over a large area and will only very rarely lead to pollution of the surrounding areas to an extent that can affect the health of the local population.

input question: Fix spacing: SinceskepticsappeartohavechallengedtheirintegrityaswellastheirmemoryIthinkitistimeforallofusthathavebeensilenttotalkaboutwhatweobserved.

output answer: Since skeptics appear to have challenged their integrity as well as their memory I think it is time for all of us that have been silent to talk about what we observed.

input question: Fix spacing: Uninstallation:AsDLLfilesarecreatedtosupportotherprogramsandsoftwaresworkingwell,thedataandfunctionsareactuallysharedbymanyprograms.whenyouuninstallaprogram,KBDIC.DLLmaybemistakenlydeleted.

output answer: Uninstallation: As DLL files are created to support other programs and softwares working well, the data and functions are actually shared by many programs. when you uninstall a program, KBDIC.DLL may be mistakenly deleted.

input question: Fix spacing: Stretchonearmoutwardsinfrontofthechest,withthepalmfacingdown.

output answer:
Stretch one arm outwards in front of the chest, with the palm facing down.