(Worth 30 POINTS) Which of the following is true of federalism? It is a system of shared power between states and national governments
The sole authority is the national government
The sole authority is the state governments
The sole authority is the President and his cabinets

The correct answer is A. It is a system of shared power between states and national governments

Explanation:

Federalism is a government system that involves the division of power between a general national government and specific regional governments such as state governments or province governments. This implies the power is not only held by the national government but local governments have power over political decisions. Additionally, federalism is politically efficient because power and responsibilities are divided geographically; also, local governments have some autonomy. An example of this is the government in the U.S. in which there is national but also states governments.

d. the polar jet stream   lies between the polar easterlies and trade winds should be your answer

a factory opens that mass-produces light bulbs.

explanation:

not sure if that's an answer to your questions but this is an example! : )