Answer: The constant taxes put on the colonists in America
Explanation:
Airplane because it helps people travel and it helps people get medication from different states.
D. There is no monarch in a republic
Answer:
The seventeenth Amendment allowed the people to vote for senators without the electoral college. After the Amendment citizens could directly vote for those in the senate, though voting for the president will still require the electoral college.
The answer is regressive tax. Example: sales tax. With this tax the rate is the same rate for everyone, no matter their income. The only thing that changes is the percent of your income you pay. Someone who makes less money will pay a higher percentage of their income than someone who makes more money.