QUES: After being appointed to the Chair of Mechanics at Turin he was appointed to the Chair of Mathematical Physics at Rome in 1900

correct the punctuation.

CORRECTED: After being appointed to the Chair of Mechanics at Turin he was appointed to the Chair of Mathematical Physics at Rome in 1900.

QUES: It is clear today that the owner has to show that he is deriving the tangible benefit

correct the punctuation.

CORRECTED: It is clear today that the owner has to show that he is deriving the tangible benefit.

QUES: Step 1 Download and install Repair Outlook tool on PC Run the tool and from main screen select Open PST file option

correct the punctuation.

CORRECTED:
Step 1: Download and install Repair Outlook tool on PC. Run the tool, and from main screen, select "Open PST file" option.