All the options are correct.
As we know before Missouri Compromise of 1820, there were 11 free states and 11 save states and so there was a balance of power between North and South. The admission of Missouri as a slave state would result the imbalance. So we see Henry Clay, a congressman came with Missouri Compromise which provided for admission of Missouri as a slave state along with Maine as a free state in order to maintain the balance of power. It also prohibited slavery in the north of 36*30 parallel, excluding Missouri. So ultimately resolved the heated issue of the time in the Senate over slave states and free states. As it was a controversial act, it was later declared unconstitutional and was repealed by Kansas-Nebraska Act of 1854.
That is not a question that is an answer
please ask a question next time
Poor air and water quality, insufficient water availability, waste-disposal problems, and high energy consumption are exacerbated by the increasing population density and demands of urban environments and obvious urban growth and sprawl.
Some of the major health problems resulting from urbanization include poor nutrition, pollution-related health conditions and communicable diseases, poor sanitation and housing conditions, and related health conditions. These have direct impacts on individual quality of life, while straining public health systems and resources. Urbanization has a major negative impact on the nutritional health of poor populations. Because they have limited financial resources and the cost of food is higher in cities, the urban poor lack nutritious diets and this leads to illness, which contributes to loss of appetite and poor absorption of nutrients among those affected.
These are just a few of the many downsides to urbanization. While not everything about urbanization is negative of course the depth of discussions to be had about the various aspects are almost infinite. Your question was a tad vague and didn't give specifics as to what you were looking for so I hope my answer helped.