Radio waves ______ by the ionosphere. This makes it possible ______ short-wave radio signals over great distances. A) is reflected / to send B) are reflecting / sent C) are reflected / sending D) are reflected / to send

Radio waves ______ by the ionosphere. This makes it possible ______ sh

1.	Radio waves ______ by the ionosphere. This makes it possible ______ short-wave radio signals over great distances. A) is reflected / to send B) are reflecting / sent C) are reflected / sending D) are reflected / to send
Answer» Correct option is D) are reflected / to send

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Radio waves by the ionosphere. This makes it possible short-wave radio signals over great distances. A) is reflected / to send B) are reflecting / sent C) are reflected / sending D) are reflected / to send

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