Answer: A thing that died a long time ago, and it's bones were preserved in the ground.
Explanation:
Because yes
D will because water just turns from liquid to a gas by adding heat. That is a physical change. The other equations are chemical changes.
2 FeO + 1 C ===》2 Fe + 1 CO2
The information that the coefficients of a balanced equation give about the reactants are to tell how many moles of reactants are needed and how many moles of product can be produced.