Cenozoic Era, Mesozoic Era, <span>Paleozoic Era, Precambrian Time</span>
Answer:
Rural to urban migration represents people moving from village to town.
Explanation:
This causes the cities to grow and to be overcrowded. People migrate from countryside to town to find better life standard. They are in search for better jobs, vivid social life and run away from rural living. Unfortunately this causes the villages to be abandoned and be forgotten.
I believe the term you are looking for is called an agora.
