Which type of frequency do bats use for echolocation?

Sonic

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Ultrasonic

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Infrasonic

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Supersonic

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Solution

The correct option is B Ultrasonic
Bats use ultrasonic waves for echolocation. Ultrasonic waves have frequency more than 20 kHz. Due to such high frequency, they can travel longer distances. Sound sent by bats is reflected back by the obstacle and its echo os heard by the bat. Based on the lag in reception, it can detect the location of obstacle.

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