Science Olympiad Road Scholar Practice Exam

Hard-surface roads are paved, usually with asphalt or concrete, and designed to be usable in all weather. A secondary highway is part of the public highway network but not one of the primary long-distance routes. Putting those together, “Secondary highway (hard surface)” points to an all-weather, paved road that serves as a mid-level public route. Dirt roads, gravel roads, and private driveways are not paved and typically aren’t designed for consistent all-weather use, so they don’t fit this description.