Answer:
An analog signal is a continuous signal transmitted in the form of sine waves of varying amplitude
Explanation:
An analog signal is a step varying analog waveform that conveys information in a manner that is continuous in both amplitude and time
An analog process is one whose signal continuously varies, maintains a basic shape, and is transferable between mediums such that information is conveyed by analog signals based on analogy, which is one quantity tending to mimic another quantity's behavior
Signals of sound, voltage, data, voltage, or electric current can be transmitted as analog signals