What were some of the negative effects of technological advancement from world war 1?

According to ncpedia.org, Perhaps the most significant technological advance during World War I was the improvement of the machine gun, a weapon originally developed by an American, Hiram Maxim. They also developed air-cooled machine guns for airplanes and improved those used on the ground, making them lighter and easier to move.

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might be agreeing to participate ethically with other european nations in the slave trade

or notifying other european nations when taking possession   of african territories

formulating the initial idea for the policy

answer is c.