Question

what is the source of energy that drives photosynthesis?
sunlight
hydrogen ions
electrons
oxygen

Explanation:

Photosynthesis is a process in which plants, algae, and some bacteria convert light energy into chemical energy. Sunlight provides the energy needed to power the chemical reactions in photosynthesis. Hydrogen ions, electrons, and oxygen are involved in the process but are not the energy - driving source.

Answer:

A. sunlight