Question

which of following describe(s) a way in which radio waves can carry energy?
a. through rock layers, from a source, to a reflector, and then to a receiver
b. through outer space, from a spacecraft back to earth
c. through the earths atmosphere, from a broadcast tower to a receiver
d. all of these

Explanation:

Radio waves are a form of electromagnetic radiation that can travel through various media. They can propagate through solid materials like rock layers (used in ground-penetrating radar), the near-vacuum of outer space (used for spacecraft communication), and the Earth's atmosphere (used for radio and TV broadcasts). All the listed scenarios are valid ways radio waves carry energy.

Answer:

D. all of these