and the same goes for emissions of climate-impacting carbon dioxide and other substances.

How would the previous sentence be correctly capitalized?
Answer: And the same goes for emissions of climate-impacting carbon dioxide and other substances.
wi-fi is available in public areas and is free of charge

How would the previous sentence be correctly capitalized?
Answer: Wi-fi is available in public areas and is free of charge
testosterone is known as a male hormone or androgen.

How would the previous sentence be correctly capitalized?
Answer: Testosterone is known as a male hormone or androgen.
this sophisticated acoustic principle makes it easier to integrate the loudspeaker in the acoustics of the living room. in most living rooms the ceiling and the floor are completely even surfaces that give many reflections of the sound.

How would the previous sentence be correctly capitalized?
Answer: This sophisticated acoustic principle makes it easier to integrate the loudspeaker in the acoustics of the living room. In most living rooms the ceiling and the floor are completely even surfaces that give many reflections of the sound.