The number of people per square means how many people make up the population every square mile. This is called population density.
Demographic transition refers to a shift in death rates followed by a shift in birthrates, and its associated population boom;
Most developing nations are going through a demographic transition today.
Demographic transition refers to a shift in death rates followed by a shift in birthrates, and its associated population boom. Most developing nations are going through a demographic transition today.
20th century
Urbanism