Why is there a difference between the tropical year and the sidereal year?

Suburban cities have been on the rise for the last seven decades due to their orientation around which mode of transportation? a) buses b) airplanes c) automobiles d) bullet trains

What was the name of the totalitarian party in italy? a. nazib. communistsc. fascists d. socialist

Prior to the 1948 presidential campaign, truman won back the support of labor unions by highlighting his opposition to the taft-hartley act. supporting the passage of the national security act. pushing for equal rights for african american citizens. opposing the strikes of railroad and mine workers.