D: Vinson act increased the strength of the US navy by 20%
The similarity between the Mayas, the Incas, and the Aztecs is that they all had control of a rather large empire(s) that eventually came to an end.
The romans helped the persian empire.
"Farmers free access to the rail lines" benefit railroad companies provided that allowed farming to expand in west Texas
<u>Explanation:</u>
The first to grow crops on West Texas soil were Native Americans and settlers, who saw the area as a land of opportunity and quickly followed. Everything from corn, cantaloupe, and cotton was successfully tried as peasants adjusted to their climate with resilience.
The construction of railroads in West Texas enabled ranchers and farmers move their goods more effectively and by the end of the 19th century, Texas had rowed as a leading producer in cattle as well as cotton.
