The number of people in relation to the land is called country demographics. population resources. population density. country population.

  Population density.

Explanation:

  It is a measurement of the population per unit area. It´s a key geographical term because it helps determine the number of people living in an area per kilometer square.

  The formula used to determine the density is obtained after dividing the population and the total land area.

  I hope this answer helps you.

the answer to number 5 is fort sumter

no statements but ok.

the statement that best describes the idea of manifest destiny that was used in the 19th century would be that "it was fate that the united states would continue to  expand westward," since people thought the us was "destined" to do so.