During the process of photosynthesis, plants use light energy, carbon dioxide (CO2), and water (H2O) to make food they need. Which statement describes the atomic composition of the products of photosynthesis?
A. The products contain only carbon and oxygen atoms.
O B. The products contain only phosphorus and oxygen atoms.
O c. The products contain only carbon, hydrogen, and nitrogen atoms.
OD. The products contain only carbon, hydrogen, and oxygen atoms.

Letter a, because when there are unlike charges they will always attract to each other.

the best answer for these questions would be:

1.            c. is smaller

2.            d) concrete operational

3.            b) interaction with the environment – the children interact with their environment can them learn more.

4.            a) parents who reason openly with children can limit a child’s cognitive ability.

stands for electromotive force and it is measured in volts. despite its name, it is not actually the force in the sense of being a "pushing" or "pulling" (not measured in newtons).an equation that relates emf,  ℰ,  to a battery's terminal voltage, v, current, i, and internal resistance, r, is    ℰ = v + irin this case, the emf can be interpreted as a voltage—a difference in electric potential.i would not say that it would be considered an energy. if emf can be defined as the energy/work per a unit charge from a battery or other electric source, then it is not strictly energy.