How are additional slides added to presentations?

Wich technology can a website use to allow you to listen to a concert live over the internet?

Drag each label to the correct location on the imagelist the do’s and don’ts of safeguarding your password. keep yourself loggedin when you leave your computer. don’t write your password down and leave it whereothers can find it. share your password with your friends. each time you visit a website, retain the cookies on your computer. use a long password with mixed characters.

Which tab should you open to find the option for adding a header?