Explain why not being a good citizen can be harmful to others?

If your not being a good citizen and if you are reckless you can harm others around you causing you to be a dangerous person.

A good citizen is some who is helpful , willing to put others first, respect them.; is a good listener, one that think about what is important to others; loves knowledge as a way of a better understand of the world and is a loving person, who does not like to to harm anyone.

do you have a list of sources to choose from?

world war i began in 1914, after the assassination of archduke franz ferdinand, and lasted until 1918. during the conflict, germany, austria-hungary, bulgaria and the ottoman empire (the central powers) fought against great britain, france, russia, italy, romania, japan and the united states (the allied powers). to new military technologies and the horrors of trench warfare, world war i saw unprecedented levels of carnage and destruction. by the time the war was over and the allied powers claimed victory, more than 16 million people—soldiers and civilians alike—were dead.

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