The correct answer is D - When burning a log, the wood combined its components with oxygen. if you could capture the products (CO2, H2O, C, CO, etc), you would have a greater mass than what you started with, burning the log combined the log's components with oxygen in order to burn it.
Answer:
c when electrons drop down from a high energy level they emit a photon.
Explanation:
Rubber it's not a conductor
This one is beta decay (the -1 subscript tells us that)