WBCS.LIVE practice question

Bats can fly in the dark without hitting objects because

Solve this multiple-choice question and check the correct answer with its explanation below.

Answer options

  1. They are flying mammals
  2. Their night vision is good
  3. They are guided by ultrasonic waves which they produce
  4. Of no scientific reason

Correct answer and explanation

Correct answer: They are guided by ultrasonic waves which they produce