What is the function of a primary key in a table? to uniquely identify each record in the table to uniquely identify foreign keys in the table to secure table data to secure the foreign keys in the table

Kyle, a receptionist for a building supply company, recently won an award for saving his company money on their phone system. after being presented with kyle's research, the company changed the way in which it made long-distance phone calls and cut their expenses in this area by 75 percent. the new system the kyle's company most likely adopted was wired communications switching stations voip hdtv

You have written, as part of a school assignment, a research paper on the solar system. you want to share this paper on your school website. on which type of server will you upload it?

Whats are the different parts of no verbal comunication, especially body language?