Explain how governments working together helps the people.

it represents the ideals and the opinions of all the citizens. So basically, there are three branches of government; the judicial, executive, and the legislative. The legislative branch takes into consideration the votes of the people and create laws, the executive branch enforces these laws, and the judicial branch interprets the laws. All three branches keep each other in check so one branch doesn't get too much power. For instance, the legislative branch can veto the executive branch. 

but governments from different countries negotiate through the united nations to reach agreements that are beneficial for the countries. 

Explanation:

donald carl johanson (born june 28, 1943) is an american paleoanthropologist. he is known for discovering – with yves coppens and maurice taieb – the fossil of a female hominin australopithecine known as "lucy" in the afar triangle region of hadar, ethiopia.

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