One of the biggest challenges for early settlers to america was: 1. were impossibe at times to travel. it was very difficult to transport goods and people. 2. communication 3. lack of federal government 4. lack of a national army for protection

3 because without a leader their is no country

Ifound this on google “the existence of agglomeration economies is central to the explanation of how cities increase in size and population, which places the phenomenon on a larger scale. the concentration of economic activity in cities is one reason for their development and growth.” i hope this you for what your looking for.

The answer is a hope