Q1 of 29 Page 182

Find out the information about names of animals and their photographs from internet, which communicate using infra-sonic or ultra-sonic sound and prepare a scrap book.

Animals that communicate through infra sonic or ultra-sonic are whales, elephants, hippopotamuses, rhinoceros, giraffes, okapi, and alligators


1. Below is an image showing the whale using ultra sonic waves in the water to communicate with other fishes.



When the sound hits the object in the water it bounces back as an echo and whales absorb this echo .


2. Bats use ultrasound to find and catch insects. The phenomenon is called as echolocation. Some species are better at it than others.



3. When male mice perceive the pheromones of a female counterpart, they respond with ultrasonic sounds.



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How do you appreciate efforts of a musician to produce melodious sound using a musical instrument by simultaneously controlling frequency and amplitude of the sounds produced by it.

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