N1883, who was responsible for creating the first system of time zones in the united states?

The united states economy is one in which producers are generally free to produce what they want and consumers are free to purchase what they desire, so long as no laws are broken. at the same time, however, the government does regulate some aspects of the economy. the u.s. can best be described as which of the following a mixed economy b liberated economy c command economy d market economy

Which political reform gave people the power to put a proposed law on the ballot? referendum initiative direct primary recall

How is the uk’s government is solving the air pollution problem?