Elephants communicate with one another at a sound frequency of

1.0 Hz

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15 Hz

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150 Hz

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0.1 Hz

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Solution

The correct option is A 1.0 Hz
Sounds are called infrasonic if they are below the frequency of 20Hz. The peculiar characteristic of elephants is that they communicate using a very low sound frequency which is inaudible for the human. Low-frequency sound travels farther and fast than high-frequency sound providing a secure long distance communication channel for elephants.
Hence, the correct answer is '1.0 Hz'

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