Afederal income tax exists to provide revenue for
schools and other services.
state governments.
local governments.
the us government

The US government.

Explanation:

A federal income tax exists to provide revenue for a country's grow and sustentation, it is taxed on all American citizens. The income from federal tax is credited to the United States government and is applied in many things such as infrastructure; pensions; social welfare; education; security; health or public transportation.

Some states and local governments have their own income tax system that is applied on citizens that are living in their territory, additionally to the federal income tax.

the money supply is the total amount of money available in the economy. how do changes in the money supply affect people and businesses?

two jet streams that directly affect the formation of weather in the continental part are a polar jet and a subtropical jet. they are responsible for the transportation of weather systems, which directly affect people. the polar front is the boundary between cold air from the north pole and warmer equatorial air. both the polar jet and the subtropical jet blow from the west to the east, and follow the boundary between cold and warm air.

the strongest jet streams are polar jets, while subtropical jets are somewhat weaker.

the right answer is c. the polar jet stream is generaly stronger than the subtropical jet stream.