They did it by being better than anyone else at metalworking. They had a strong and developed iron industry and they traded a lot with other nations so they could amass large amounts of wealth. They also made textile out of cotton and had large amounts of gold, so it was easy for them to become dominant.
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I'm thinking that it is China, but I'm not 100% sure.
Group decision making or collaborative decision making is the type of decision making that is done based on the one who is harmed the least.
This decision making is done by the group of people and comes up with a decision that will be helpful to them
