The selective service act of selective draft act was enacted May 18, 1917 it <span> authorized the federal government to raise a national army for the American entry into World War I through the compulsory enlistment of people.</span>
The River Valley civilizations were built around fertile sole and they made great contributions to the world. They are:
- <em>Tigris- Euphrates valley in Mesopotamia. </em>
- <em>The Nile Valley in Egypt. </em>
- <em>The Harappan in the Indus Valley</em>
- <em>The Yellow river or Huang He valley in China. </em>
The four factors they had in common were:
- Religion. All civilizations had some form of religion, while the Egyptians worshiped their gods
- Economic Development. They focused on Agriculture creating better tools and irrigation techniques, they practiced trade and slavery.
- Written Language. Each civilization had their own way of writing and they used codes to write down the laws they were ruled by.
- Centralized Government and Class Divisions. China was ruled by an emperor, Egypt was ruled by the Pharaoh, Harappa was ruled by a king and Mesopotamia was ruled by priests.
The answer you are looking for is ceilings
I dont think the question is completed