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1. |
_ A layer in the Earth's atmosphere called Ionosphere facilitates radio communication. Why?1. The presence of ozone causes the reflection of radio waves to Earth.2. Radio waves have a very long wavelength.Which of the statements given above is fare correct?$? |
A. | 1only |
B. | 2 only |
C. | Both 1and 2 |
D. | Neither 1 nor 2 |
Answer» E. | |