Flat spots on rail car wheels can cause what to startle?
animals water planes vehicles people nerves deaf people an object
A B C D E F G H
Flat spots on rail car wheels cause a loud banging noise.
Flat spots on rail car wheels can cause animals to startle
Flat spots on rail car wheels can cause what to startle? (A) animals (B) water (C) planes (D) vehicles (E) people (F) nerves (G) deaf people (H) an object