What is one reason that new communities grew in the west?

The reason why new community grew in the west it is because of resulted in unsanitary conditions in many communities. The urban population was growing at an unexpected rate and also the aggressive exploitation of the west's bounty. They also value nationalism so they grew more population. 

the common people were given the right to vote. jacksonian popular government was a nineteenth century political reasoning in the united states that upheld more noteworthy vote based system for the basic man as that term was then characterized. starting with president andrew jackson and his supporters, it turned into the country's overwhelming political perspective for an age.

the berlin blockade was an international crisis that arose from an attempt by the soviet union, in 1948–49, to force the western allied powers (the united states, the united kingdom, and france) to abandon their post-world war ii jurisdictions in west berlin. in march 1948 the allied powers decided to unite their different occupation zones of germany into a single economic unit. in protest, the soviet representative withdrew from the allied control council. coincident with the introduction of a new deutsche mark in west berlin (as throughout west germany), which the soviets regarded as a violation of agreements with the allies, the soviet occupation forces in eastern germany began a blockade of all rail, road, and water communications between berlin and the west. on june 24 the soviets announced that the four-power administration of berlin had ceased and that the allies no longer had any rights there.