optimum control of air direction, quantity and velocity

How would the previous sentence be correctly capitalized?
Answer: Optimum control of air direction, quantity and velocity
the company saves the search history of google users already, but has added a new feature to the google application that captures screenshots of all user searches automatically.

How would the previous sentence be correctly capitalized?
Answer: The company saves the search history of Google users already, but has added a new feature to the Google application that captures screenshots of all user searches automatically.
since he even owned some of the proposed building sites in 'new copenhagen', he was actively engaged in plans to build this beautiful new part of town.

How would the previous sentence be correctly capitalized?
Answer: Since he even owned some of the proposed building sites in 'New Copenhagen', he was actively engaged in plans to build this beautiful new part of town.
thanks to the sharpened and hardened edge, problem-free work is possible.

How would the previous sentence be correctly capitalized?
Answer: Thanks to the sharpened and hardened edge, problem-free work is possible.