During the light independent reaction of photosynthesis, light energy is converted to the energy currency of all cells. this energy-carrying molecule is needed to produce glucose. this molecule is

This molecule is Adenosinetriphoshate (ATP) molecule

The light-independent (dark) reaction of photosynthesis is the second chemical reaction of photosynthesis that takes place in the stroma within the chloroplast. This reaction uses the products of light dependent reactions which are the energy carrying molecule (ATP) and NADPH (which provides electron) to convert carbon dioxide and other compounds into glucose.

the answer to your question is tooth decay.

the answer is lactic acid from anaerobic respiration. the acid in lactic acid is what creates sore and burning muscles. if you think about how acid burns that will give you a clue for questions like this.