HOW CAN I CHANGE THE LANGUAGE OF THE PAGE AND WHAT EFFECT WILL IT HAVE ON THE PAGE?

To change the page language, first click on the gear icon and then click on page settings. Then, select the page and click on the checkbox under language and choose the language from the drop-down menu.

Here is how to change the language of the page:

Step 1: Open the Page settings popup window and select the page you want to change the language for. 
Step 2: Now in the middle column you will find an attribute for Language, check the check box under that attribute (in red)