<span>When you develop an application using a 3-layer architecture, the layer that provides the user interface is called the Presentation layer?</span>
<span>The wireless networking radio frequency 5GHz yields faster speeds but offers shorter range .
</span>One hertz is one complete cycle per second. <span> In </span>wireless communications<span>, it refers to wave oscillation. </span>Higher frequency can mean a faster system.
very independent : ) we use it for everything
Answer:https://www.khanacademy.org/computer-programming/lava-the-impossible-game-by-swax97/4638717300965376/embedded?id=1436456095000-0.5&origin=undefined&buttons=yes&embed=yes&editor=no&author=yes
Explanation: