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