How did the river network shown on the map contribute to the advance of ideas in the Middle Ages? HURRY I HAVE 5 MINS PLS GUYS

When were the first 10 amendments to the constitution adopted and what was their purpose? when were the first 10 amendments to the constitution adopted and what was their purpose?

In a market economy, what does a producer mean when it asks, "is there a market for my products? is there a place where we can sell our products? " "ls our product being made more cheaply overseas? " will consumers need and want to buy our products? " will the government support demand for our products? "

What are the most populous and least populous areas of russia? and why are some areas more heavily populated than others?