OPSC OAS 2020 PrelimsScience & TechnologyQuestion 3
Solved previous year question from the OPSC OAS/OCS 2020 Preliminary Examination (General Studies), with the official answer key and a detailed explanation.
Question
Bats use*___ to navigate and find food.
Tap an option to check your answer.
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Answer & Explanation
Correct answer: (D) Echolocation
- Bats emit ultrasonic sounds and listen to the echoes that bounce back from objects, allowing them to navigate and hunt in the dark.
the other options are incorrect
- (A) Resonance:Phenomenon where an object vibrates at its natural frequency when exposed to matching external frequency
- (B) Magneto-reception:Ability to detect Earth’s magnetic field for navigation and orientation
- (C) Electroreception:Ability to detect electric fields generated by other organisms
