During a camping trip, sierra collected dry branches and broke them into smaller pieces. she then placed the sticks in a fire pit and used a match to light the sticks on fire. next, she propped a metal pan of water over the fire and heated it until the water boiled.

which list correctly describes physical and chemical changes that occurred in this scenario?

a. physical change: breaking sticks
chemical changes: lighting the fire, boiling water
b. physical change: boiling water
chemical change: breaking sticks, lighting the fire
c. physical changes: lighting the fire, boiling water
chemical change: breaking sticks
d. physical changes: breaking sticks, boiling water
chemical change: lighting the fire