What jobs did homosapians have for most of your existance? This subject is history

social studies was the closest to history
MIDDLE SCHOOL QUESTION

What impact did improvements in farming technology near the end of the nineteenth century have on the american economy? a. more energy was needed to power equipment, creating the renewable energy industry. b. less labor was necessary on farms, leading workers to pursue other jobs. c. less money was invested in farming as many locally owned farms went bankrupt. d. more demand for agricultural products reduced the price of food and animal products.

What is it called when countries build lots of weapons to store and them in case of a war?

In what ways are some local executive branches structured in a similar manner to state executive branches, and in what ways are some structured differently?