Question

The________ is the range of an infra sound

Answer 1

Answer:

Infrasound is sound which extends below the range of human hearing (from 20 Hz down to 0.001 Hz), and it eminates from many natural and man made sources. For example, some animals, such as whales, elephants and giraffes communicate using infrasound over long distances

Answer 2

Answer:

The 20 Hz to 0.001 Hz is the range of infra sound