Please capitalize where necessary: we prefer to look at the environmental issues we face today as a challenge, not a problem.
A: We prefer to look at the environmental issues we face today as a challenge, not a problem.

Please capitalize where necessary: young girls are eager to get ideas for their own trousseaus. in all, the trousseau provides a subject of conversation throughout the week or two it is on display.
A: Young girls are eager to get ideas for their own trousseaus. In all, the trousseau provides a subject of conversation throughout the week or two it is on display.

Please capitalize where necessary: this form of political invasion is called by dr. weizmann, who exhaustively studied it in his youth, when he was preparing in russia for his life's work in the west, "the technique of propaganda and the approach to the masses."
A: This form of political invasion is called by Dr. Weizmann, who exhaustively studied it in his youth, when he was preparing in Russia for his life's work in the west, "the technique of propaganda and the approach to the masses."

Please capitalize where necessary: the situation was somewhat more complicated than that proposed by eratosthenes, but today the names for the races proposed by eratosthenes, namely minaeans, sabaeans, qatabanians, and hadramites, are still used.
A:
The situation was somewhat more complicated than that proposed by Eratosthenes, but today the names for the races proposed by Eratosthenes, namely Minaeans, Sabaeans, Qatabanians, and Hadramites, are still used.