The proper way to brake in an emergency situation with non-abs brakes is to: (a) apply threshold braking (b) “pump” the brakes
(c) lock the brakes
(d) all of the above

Based on the concept of the wave-like nature of light, huygens' theory of light postulates that the more light was "bent" by a substance the slower it would move while traversing across that substance. a) deflection b) interference c) refraction d) resonance