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.

soviet influence spread across eastern europe sharply during and after wwii. the soviet armies liberated the countries in eastern europe and occupied them from the germans as they were forced to retreat towards germany.