Why do the police use dogs for detective work?
A. They have sharp eyesight
B. They can run very fast
C. They can hear ultrasonic waves
D. They are easily trainable
Answer
Correct Answer: C. They can hear ultrasonic waves
A. They have sharp eyesight
B. They can run very fast
C. They can hear ultrasonic waves
D. They are easily trainable
Correct Answer: C. They can hear ultrasonic waves