<h3><u>Answer;</u></h3>
i) Population density
ii) Under population
iii) Over population
Population density is the number of people living in a square mile. In the future, economically developed nations may not have enough money to take care of older citizens because of underpopulation. In low-income nations, overpopulation is one reason for low standard of living.
C. urbanization is going in throughout the world.
<span>the layer of soil below the O horizon, composed of a mixture of of humus, sand, silt, and clay; combines the O horizon to form topsoil</span>
A. Is correct, uses a free source or energy. Aka renewable source