Answer:
The city-states changed in 2000 BCE as they became weak and easy to conquer by outsiders.
Explanation:
A city-state controlled its towns and villages, but city-states fought with one another over resources and territory.
Around 2000 BCE, the region became weak due to conflict, which made it easy to conquer by others. The change implemented regarding the economy and government after the capture. People were allowed to work, trade and do businesses along with paying taxes. The rulers of the city-states became more powerful, began to exercise their authority over others, and established dynasties.
The United States is one of five permanent members of the United Nations b) security council. The other member states are: Russia, France, China and the United Kingdom. The Security Council is one of the six principal organs of the United Nations and is charged with the maintenance of international peace and security, as well as accepting new members into the United Nations and approving any changes to the United Nations charter.
The toothbrush evolved over time and mainly out of necessity. Traces of the first toothbrush can be dated back as early as 3500 B.C.E. These bamboo sticks were then used just like a modern manual toothbrush to clean the teeth. Eventually, the Chinese version of the toothbrush made its way to Europe.
