Final answer:
It is recommended to stay at least 200 feet behind snowplows on roads with a speed limit of 35 mph or more to maintain safety and visibility.
Step-by-step explanation:
When driving on roads with a speed limit of 35 mph or more, it is essential to maintain a safe following distance behind a snowplow, but the question does not specify the exact distance you should stay behind the snowplow. It is recommended to stay at least 200 feet behind snowplows for safety. This distance allows adequate space for the snowplow to operate and for the driver to have a clear view of the road ahead while preventing any damage from flying debris or snow that is being removed. Additionally, snowplows often have to stop or slow down suddenly, and the extra distance gives you more time to react appropriately and avoid collisions.