Question

write difference between infrasound, ultrasound ,audible

Answer 1

ultrasound have frequency above the normal range of human being
infrasound have frequency less than20 hz. animal communicate through infrasound
and audible is that human being can listen

Answer 2

ultrasound waves have frequency above the normal range of human hearing they can be used to scan for birth defects in unborn baby and for defects in manufactured equipment infrasound has a frequency below than human hearing .

Hope it helps u..