I dont know what is that and you know i m not brainy i m sorry i dont understand please give me a second chance to help you sorry i did not answer yet
A or b there is no wrong answer
Answer:
Indus river (India): Harappa And the city of Mohenjo-daro
Nile river (Egypt): Ancient egyptian pryramid structures, obelisks, System of mathmatics, Medicine development, etc.
Huang he (China): The great wall of china build, development of budda religion, growing rice products.
Tigris-Euphrates (Mesopotamia): The wheel, plow tool, and cut canals and river connections.
The Chinese Exclusion Act of 1882 was the first significant law restricting immigration into the United States. Those on the West Coast were especially prone to attribute declining wages and economic ills on the despised Chinese workers.
