there are many forms of communication. such as; letters, post cards, pictures, semaphore, emailing, texting, posting, social networking, talking one to one, walk talkies and lots more
crisis communications (the models of creating and managing special communication network informing people of various threats and preventation their lifes)
Mobile Phones Communicate By Using Radio Waves Or Radio Frequency Connecting The Mobile Phone To Nearest Phone Mast. Phone Mast Is Placed At Thee Bottom Of The Phone That Is Why We Get Bad Or No...