Which law requires employers to provide safe working environments for their employees?

Identify the type of chemical reaction involved in each action.

Which of the following best describes brazil's economy from 1650-1880? a. it gradually shifted to manufacturing as the industrial revolution progressed. b. it was based on mining. c. it was based on plantation agriculture, where slaves served as a labor force. d. it was based on small, family-owned farms.

Which of these has the least impact on the climate of a place