What are the main functions of federal and state governments? the central functions of the federal government are to provide national defense, manage the country's foreign affairs, regulate interstate and international commerce, and oversee the country's monetary system. the key functions of state governments are to provide for the public health, safety, welfare, and morals of their citizens. dual federalism characterized the united states federal cooperation helps mitigate the problem of collective action among states?

Answer and Explanation:

The main functions of the federal government include:

National security

Public services and welfare

leadership of the union

Economic security

The main functions of the state government include:

Following federal mandates

Education

Transportation

Effective judicial system

Dual federalism means division of power between federal and state government jurisdictions such that the federal government may not interfere with state government.

the right answer is the third one: turnpikes went short distances to connect markets. turnpikes, also known as toll roads, were very important for trade and transportation (of people, goods and products) in the 19th century, coinciding with the expansion towards the west. they contributed significantly to the economic development of the united states.