The second one attending schools
The answer is most certainly a good one. it is b
Physics: yes! it means "knowledge of nature" in Greek!
biology: yes! bios- means "life" and and logy: study
geography: yes! geo is earth and graphy:
Algebra: no! it's an arabic word.
The overall goal of labor unions during the late 1800s and early 1900s was to protect workers from heavy abuses by their employers--abuses such as working incredibly long hours and working in very dangerous factory conditions.