Q. Which layer of the atmosphere reflects radio waves back to the Earth's surface, enabling long-distance wireless communication?
✅ Correct Answer: (C)
Ionosphere
Explanation: The Ionosphere (part of the Thermosphere) contains a high concentration of ions and free electrons. This electrically charged layer reflects high-frequency radio waves back to Earth, facilitating worldwide telecommunication.
Explanation by: Mr. Dubey
The Ionosphere (part of the Thermosphere) contains a high concentration of ions and free electrons. This electrically charged layer reflects high-frequency radio waves back to Earth, facilitating worldwide telecommunication.