What are middle-latitude cyclones?

a fast-moving cold fronts

b low-pressure systems that cause stormy weather

c warm fronts that move across the middle of the united states

d heavy snowstorms that form on the leeward sides of lakes

The graph indicates the running route for tobias. which best describes his run? from time 0 to 6, he went fast and then slowed down. from time 6 to 10, he was at his slowest. from time 12 to 14, he went very slow. from time 14 to 18, he went toward the starting point.