Question

Radio waves ______ by the ionosphere. This makes it possible ______ short-wave radio signals over great distances.



is reflected / to send

are reflecting / sent

are reflected / sending

are reflected / to send

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Answer 1

Ответ:

1. are reflected

2. to send

Answer 2

Ответ:

Radio waves are reflected by the ionosphere. This makes it possible to send short-wave radio signals over great distances.