Question: The Nordic conditions give rise to special requirements in terms of road marking materials and the characteristics of such materials
Please fix the punctuation.
Fixed: [The Nordic conditions give rise to special requirements in terms of road marking materials and the characteristics of such materials.]

Question: Simultaneously tap WinR to launch RUN and enter Control Panel
Please fix the punctuation.
Fixed: [Simultaneously tap Win+R to launch RUN and enter Control Panel,]

Question: Another great advantage is its easy user friendly interface that the user can navigate with no instructions needed On the users computer screen there is an icon of premium TV for PC that is ready for easy access Pointing and clicking on the icon to open the premium TV player and then you can navigate your way to any channel that is in categorical and alphabetical order for quick access Furthermore you can store your favorite channels by adding them to favorites and recording them as well
Please fix the punctuation.
Fixed: [Another great advantage is its easy user friendly interface that the user can navigate with no instructions needed. On the user's computer screen, there is an icon of premium TV for PC that is ready for easy access. Pointing and clicking on the icon to open the premium TV player , and then you can navigate your way to any channel that is in categorical and alphabetical order for quick access. Furthermore, you can store your favorite channels by adding them to favorites and recording them as well.]

Question: He studied the Sierpinski curve which describes a closed path which contains every interior point of a square
Please fix the punctuation.
Fixed:
[He studied the Sierpinski curve which describes a closed path which contains every interior point of a square.]