It might be 23% because 77% of water covers earth and most of the water is either polluted or salt water.
<span>light energy is captured</span>
yes, and???????, you need to put more detail, that would be considered a Statement not a question.
The answer is the process in which carbon dioxide is used also forms glucose.
Glucose is a simple sugar with the molecular formula C₆H₁₂O₆. Glucose is the most abundant monosaccharide, a subcategory of carbohydrates. Glucose is mainly made by plants and most algae during photosynthesis from water and carbon dioxide, using energy from sunlight.