QUESTION: Fix punctuation: The tiles are not demountable except in selected installation diagrams
ANS: The tiles are not demountable except in selected installation diagrams.
QUES: You can now already buy Belinda the Bus merchandise products online in Palo Alto USA

correct the punctuation.

CORRECTED: You can - now already - buy Belinda the Bus merchandise products online in Palo Alto, USA
Question: On Friday it will be cloudless for a while In the evening variable cloudy and clear weather will prevail Morning temperatures will be around 15 C During the day they will reach a maximum of 26 C Low temperatures at night will be around 17C Northeasterly winds are weak
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Answer: On Friday it will be cloudless for a while. In the evening variable cloudy and clear weather will prevail. Morning temperatures will be around 15 C. During the day they will reach a maximum of 26 C. Low temperatures at night will be around 17C. Northeasterly winds are weak.
Vg Skultbakken parents farm from outside

Can you repeat this sentence, but add in punctuation?
Vaga Skultbakken parents' farm from outside
input: Se Open Bodies film online
fixed: Se Open Bodies film online.
chemical impacts sweet or acidic foodstuffs

Can you repeat this sentence, but add in punctuation?
chemical impacts (sweet or acidic foodstuffs)