question: the introduction of u, the energy of the body, was of great significance although clausius did not give it a name.
Capitalize this past sentence correctly.
A: The introduction of U, the energy of the body, was of great significance although Clausius did not give it a name.

question: if you've booked a lowfare+ or flex ticket, the economy menu is included for your flight.
Capitalize this past sentence correctly.
A: If you've booked a LowFare+ or Flex ticket, the Economy menu is included for your flight.

question: to be elevated to the blessed, one (1) miracle must be granted through the intercession of venerable father anthony with jesus.
Capitalize this past sentence correctly.
A: To be elevated to the blessed, one (1) miracle must be granted through the intercession of Venerable Father Anthony with Jesus.