Which statement includes a description of velocity? (1 point) A car travels east at 45 kilometers per hour. A student walks 20 meters down the street. A bicycle moves 8 meters per second. A marble rolls 30 centimeters away from the table.

A bicycle moves 8 meters per second.

The statement "A bicycle moves 8 meters per second" includes a description of velocity because it provides both the distance (8 meters) and the time it takes to cover that distance (1 second).

The statement that includes a description of velocity is "A bicycle moves 8 meters per second."

Explanation:
Velocity is a measure of how fast an object is moving in a specific direction. In the given statements, only the statement "A bicycle moves 8 meters per second" specifies both the speed (8 meters per second) and the direction (moving). Therefore, this statement describes velocity.