They both work together, but separation of powers divides the branches and checks an balances helps ensure that one branch doesn't get too powerful or powerful than the other.
The time needed to form a soil depends on the latitude: in enviroments characterized by a mild climate, it takes 200-400 years to form 1 cm of soil.
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The Austria-Hungary government saw the assassination as a direct attack on the country. They believed that the Serbians had helped the Bosnian terrorists in the attack. When Serbia rejected the demands, Austria-Hungary declared war on Serbia
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