What does the second t in http stand for?

What time did the north tower get hit? What is the number for Citibank HR department? Do you need a name to mail a letter? Function of Department of Transportation and Communication? What are Merits and demerits of face to face conversation? Who says communication is a process of knowledge of understanding in sharing thought and feeling? All the best in your future endeavors? What is the best cell phone provider in Canada? What is a barrier? Where to put the sender address on envelope? What constitute the absolute majority of the words of business English? What is most common use communication media? What is the difference between a query and a report? How do write a letter to a client to request an update of their contacts? How do you use stationary in y mail? What is Commissioning Utilities? What is the phone number for mastercard? What does it mean to enable AP mode in net gear wndr3400 router? What is a push notification? Why you need the international communication in your life?