What techonology led to growth of the meatpacking industry in texas?

The refrigerated rail road car.

Railroads and commercial farming led to growth in Texas industry. The invention of the refrigerated railroad car allowed Texas beef to be shipped far away without spoiling.This, in turn, led to the development of major urban industrial centers in the state. 

president franklin roosevelt supported the tva as part of his first new deal measures approved by congress in 1933. this new agency was designed to control floods, produce electric power, and improve the lives of people living in the tennessee valley. the tva accomplished many of these goals despite problems.

several states had passed similar laws, but they were limited to intrastate businesses. the sherman antitrust act was based on the constitutional power of congress to regulate interstate commerce.

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