SELECT * FROM question_mgmt as q WHERE id=4255 AND status=1 SELECT id,question_no,question,chapter FROM question_mgmt as q WHERE courseId=8 AND subId=16 AND chapterId=192 and ex_no='11' AND status=1 ORDER BY CAST(question_no AS UNSIGNED)
Explain how bats use ultrasound to catch a prey.
Sound frequencies greater than 20,000 Hz are called ultrasounds. Bats produce high-pitched ultrasonic squeaks. These squeaks reflect on prey and return back to the bats ear. This allows a bat to know the distance of his prey.
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Report a problem on Specifications:
Taking Screenshots on your Samsung Galaxy M31s is very easy and quick.
Report a problem on Specifications: