A).competition over land - they both wanted the Ohio River Valley
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 main difference between the two is that ancient Egyptians worshiped many gods and goddess meaning they were polytheistic. The Israelites worshiped one god meaning they were monotheistic.
