Which layer of the Earth's atmosphere-reflects back the radio waves of the Earth's surface?
| A. | Stratosphere |
| B. | Mesosphere |
| C. | Ionosphere |
| D. | Exosphere |
Answer : C Explanation : |
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Option: A Explanation : Explanation will come here. Explanation will come here. Explanation will come here. Explanation will come here. Explanation will come here. |
