Answer:
If all the plants on earth died, so would the people. ... When green plants make food, they give off oxygen. This is a gas that all animals must breathe in order to stay alive. Without plants, animals would have no oxygen to breathe and would die.
1. Break down of Food into Energy
Oxygen
2. Absorb X - Rays in Bones
Calcium
3. Cell Membrane Function
Sodium
4. All Organic Compounds
Carbon
I think it is D) Both processes involve energy transformations
hope this helps:)
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