Why was contact with neighboring lands important

Explanation:

The land is quite fertile due to seasonal rains, and the rivers and streams flowing from the mountains. ... Early settlers had to irrigate the land along the banks of the rivers in order for their crops to grow. Since they did not have many natural resources, contact with neighbouring lands was important.

answer; primary source information;

the federal government of the united states was established by the constitution. us is a presidential republic. the president is head of state, head of government and of a two party legislative and electoral system. the supreme court balances the powers of the federal and the state government. yhe executive branch is headed by the oresident. there are two chambers of congress, the senate and the house of representatives. judicial power is exercised by the judicial branch (or judiciary), comprised of the supreme court and lower federal courts. the judiciary's function is to interpret the   constitution as well as the federal laws and regulations.