Practice question

What can marijuana impair while driving?

  1. Speed perception
  2. Depth perception
  3. Color recognition
  4. Hearing

Answer: B — Depth perception

Driving under the influence of marijuana can impair a driver's depth perception, making it harder to accurately judge distances and objects on the road. Marijuana can also have effects on reaction time and coordination, which can affect overall driving ability. While it may also affect other perceptual abilities, such as speed perception and color recognition, these are not the primary impairments when it comes to driving under the influence of marijuana. Similarly, marijuana may not impair hearing as much as other senses, but this does not make it any less dangerous to operate a vehicle while under its influence.

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