Well the cause of a certain event in history will mean something happens.
The effect is the result of the event happening
For example. With 9/11 the cause was the twin towers collapsing. The effect would have been thousands of people dying as the result of the planes being highjacked
After WW1 the U.S. went into a Great Depression and when Franklin D. Roosevelt's was elected, his first 100 days he created many agencies to end the Great Depression.Hope that helps. :)
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.
Burgoyne had his troops carry a lot of baggage which slowed them down while the Americans sabotaged their path.
C
Because immigrants were not safe and were not treated good at that time
