Answer:
Robert Ezra
Step-by-step explanation:
Ezra pioneered the study of Urban Sociology, as an active rather than a passive discipline that focused on race relationships and sought to transform communities for the better.
Robert Ezra noticed the bad conditions of minority groups like African Americans & their environment. He coined the term "Human ecology" to note all the social, biological, physical aspects implied in the life of a community that resembles an organic being.
While he studied at the University of Chicago, he coauthored with Ernest W. Burgess "An Introduction to the Science of Sociology.
This is still one of the most influential texts for prospects of Sociology today.