The suffix -logy is greek in origin and means study. Focus on the roots to match each word with the suffix-logy to its meaning

1. the study of human society → sociology

2. the study of the earth → geology

3.the study of human races → ethnology

4. the study of crime → criminology

Explanation:

Sociology has to do with the study of human society. It studies how human society functions and also studies social problems.

Geology refers to the study of the physical structure of the earth. It also studies the substance.  Ethnology deals with the study of human races and how they relate to each other. Criminology studies about crimes, criminals, what causes crimes and how to respond to crimes.

Therefore, the above matching is correct.

the answer is a 100% b) communism

hope dis ya ; )