dhiara
contestada

Kendra and Jordan gather firewood. The wood is cool to the touch, but the campfire they make warms their hands. Which statement about this situation is true?

A. The chemical energy in the wood and the oxygen is less than the thermal and light energy released.
B. The chemical energy in the wood and the oxygen equals the thermal and light energy released.
C. The process of burning creates energy.
D. Energy is conserved in all chemical changes except burning.