Why does the united states regulate automobile manufacturing in so many ways?

The US regulates automobile manufacturing to offset air pollution.

Explanation:

Automobiles are a major source of air pollution. The smoke emitted by automobiles consists of a number of harmful gases that adversely affect the environment in a number of ways.  

If the manufacturing of automobiles is not regulated, increased production and use of automobiles will create greenhouse gases and contribute to global warming and climate change.  

china has confucianism thats everywhere in asia but it isn't really a religion.  

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.