Question

what is the fundamental purpose of using waves in technologies like fiber optics and wifi? to generate electricity for devices. to block unwanted signals from space. to store information for long - term archiving. to encode and transmit information

Explanation:

Fiber optics and WiFi use electromagnetic waves to carry and send data between devices or networks. The core function is encoding information into these waves and transmitting it to the intended receiver. The other options do not match the fundamental purpose of these technologies: electricity generation is unrelated, blocking space signals is not their role, and long-term archiving is done by storage systems, not these wave-based tech.

Answer:

To encode and transmit information.