Answer:
Ergonomic
Esther has been lifting tools all day, so most likely the repetitive movements or improper lifting caused her pain.
Answer:
Secondhand smoke among children causes a myriad of problems with the respiratory system.
Explanation:
Pregnant mothers or young children that are exposed to secondhand smoke are more likely to suffer from SIDS (Sudden Infant Death Syndrome), babies could be born with low birth weights and/or underdeveloped lungs, children can suffer from acute respiratory infections and/or asthma, children can also suffer from increased ear infections as well.
