Question

what is one disadvantage of sending information over long distances wirelessly using digital signals?
a. the farther the signals travel, the more slowly they move.
b. the signals become weaker the farther the receiver is from the source.
c. the signals become stronger the farther the receiver is from the source.
d. the farther the signals travel, the easier they are to detect.

Explanation:

In wireless digital - signal transmission, signal strength decreases with distance due to factors like attenuation. Signals don't move slower with distance (speed of electromagnetic waves in a medium is constant), and they don't become stronger or easier to detect as the distance from the source increases.

Answer:

B. The signals become weaker the farther the receiver is from the source.