According to the lesson on Population Patterns, an 'Isodemographic Map', is a map that represents which of the following:

Question

the country's size is the size of it's land area
the country's size is the size of it's agricultural land availability
the country's size is the size of it's population
the country's size is the size of how many urban cities it has

Answer 1

the country's size is the size of it's population