Answer:
Congress had to decide if new states would be 'free states' or 'slave states
Explanation:
Slavery was a significant issue regarding U.S. westward expansion because it raised questions about whether new states formed in the western territories would permit slavery or not. This issue eventually led to political debates and compromises, such as the Missouri Compromise and the Kansas-Nebraska Act, as the United States expanded westward into new territories and states. These debates played a crucial role in shaping the country's future and contributing to the tensions that eventually led to the American Civil War.
B. a supreme court justice is appointed by the principle but is not approved by congress
C. the president is impeached and removed from office after he breaks the law.
D. a senator holds town hall meetings to find out how citizens think she should vote on gun control legislation
The correct answer is D. A senator holds town hall meetings to find out how citizens think she should vote on gun control legislation.
Popular sovereignty is the principle that says that the authority of the government in a state is created and maintained by the consent and the approval of its people. The way to do so is by election. People elect their representatives and then demand actions to be taken. Like in the case of town hall meetings to listen to the voice of the people who voted for the senator. People put her in power so she needs to stay in permanent contact to find out what is best for the citizens.
Developed countries are facing challenges because their populations are aging due to decreased death rates.
An aging population refers to an increase in the median age which is caused by a low fertility rate and an increase in life expectancy.
This could also mean an increase in the proportion of a population such that there is a larger number of older people to younger ones.
Learn more about Aging population at brainly.com/question/2806687
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