What is the main reason washington sets a budget every two years?

The main reason Washington sets a budget every two years is to decide how to spend the money it takes in.

Explanation:

The federal budget of the United States is the state budget of the federal government in the United States.

It is proposed by the President of the United States to the United States Congress. Due to the bicameral system of the United States, provided for by the Constitution of the United States, the Senate and the House of Representatives must approve and amend the budget, which eventually goes to the President for signature. If the president uses his veto on the budget, the latter returns to the Congress, where the veto can be canceled by two-thirds of the voters. A shutdown of government activities in the United States generally occurs when the president and one or both chambers fail to reach agreement on budget allocations before the end of the current budget cycle.

The management and control of public accounts is carried out by several agencies including the Department of the Treasury, the Government Accountability Office, the Congressional Budget Office, and the Office of Management and Budget.

There are two types of expenses:

-Mandatory or automatic expenditure (pensions, social protection, state aid programs such as food stamps) depend on existing laws and are automatically renewed each year. They are increasing structurally for demographic reasons and costs of medical treatments. At the beginning of the 2010s, these expenses represented more than 60% of the budget of the Federal Government;

-Discretionary spending, representing less than 40% of the budget, the levels of which are set each year by budget laws voted by Congress members. They therefore concern the defense budget (half of these expenses), diplomacy, foreign aid, education, justice, research, and so on.

the factors that the economies of the muslim empires prosper were:

1- land trade routes-located between three continents  

2- sea trade routes

trade contributed to the spread of muslim empires, and with that islamic culture led to a growing feeling of internationalism resulted in the transfer of technology, science, and other cultural forms.