A medium shot is a special camera shot.
In the picture, you can see the face and hands of the person.
Social media marketing means:
Advertising something on social media.
Advertising for something.
How much space should be free at the top and bottom or left and right of the page?
There are different input modes with which you can enter information to a computer.
For example: keyboard, touch screen, mouse.
With an Internet connection, I can access my data and programmes from any smartphone or computer.
For example, while traveling.