33. Some power plants produce energy by burning coal. In these power plants, the heat from
burning that
occur when burning coal and boiling water?
A Burning coal and boiling water are both physical changes.
B. Burning coal and boiling water are both chemical changes.
C. Burning coal is a chemical change, and boiling water is a physical change.
D. Burning coal is a physical change, and boiling water is a chemical change.