What are types of communication can done through mobiles​

A cell phone offers full Duplex Communication and transfer the link when the user moves from one cell to another. As the phone user moves from one cell area to another, the system automatically commands the mobile phone and a cell site with a stronger signal, to switch on to a new frequency in order to keep the link.

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the following sets of characteristics describe what we know about the outer plants is c. rocky surface, closet to the sun and larger in size