How did railroads help the nation to develop?

Look at the graph. where p is price and q is quantity, what might cause a move from b to a?

Why was it decided in potsdam that certain industries in germany would be disabled? a. to deplete resources that might prevent germany from coming to power again b. so that a portion of the eastern region of poland would be fused together with the soviet union c. to allow the allies to focus their war efforts in fighting the last part of the war against japan d. to provide economic aid for iran's government since large war demands were made on them

Tuareg men wear a veil (tagelmust) for all of the following reasons, except