Answer:
Both became weakened and depressed by hard and bad conditions of the environment.
Step-by-step explanation:
Working in a meatpacking plant adversely affected Ona and Elzbieta because both became weakened and depressed by hard, repetitive work and bad conditions of the environment. This bad condition of the environment make their health more bad and on the other hand their work is hard which weakens their muscles and greatly affects their health and mental conditions.