The most important factor in making Mesopotamia's farmland fertile was the river that ran ran through it and flooded annually.
Joint venture is a partnership between two companies, they share the venture but are separate
Banks pay some of the interest they receive back to people with savings accounts.
I think the second answer is
Being paid per hour of labor like working at Starbucks
I’m not 100% but I hope it helps
You are correct. The first statement that you had was the right answer.