Bats can also fly in the dark because they are capable of taking the help of ______?

Bats can also fly in the dark because they are capable of taking the help of ______?

چمگادڑ اندھیرے میں بھی اڑ سکتے ہیں کیونکہ وہ ___ کی مدد لینے کی صلاحیت رکھتے ہیں؟
Explanation
  • Bats can also fly in the dark because they are capable of taking the help of   Ultrasonic Waves 
  • ***
  • concept:
  • They are guided by ultrasonic waves produced by them.
  • Bats are guided by ultrasonic waves which they produce and enable them to fly in the dark