Question

1. an important difference between expressways and freeways is that expressways feature intersections, whereas freeways use: a. interchanges b. medians c. rumble strips d. green guide signs

Explanation:

Expressways have intersections, while free - ways use interchanges to allow traffic to move between different roadways. Medians are dividers between lanes, rumble strips are for safety warnings, and green guide signs are for directions.

Answer:

a. Interchanges