Glucose, also known as D-glucose, dextrose, or grape sugar is a simple sugar (monosaccharide) and an important carbohydrate in biology. Cells use it as the primary source of energy and a metabolic intermediate. Glucose is one of the main products of photosynthesis and fuels for cellular respiration.
Math may be boring, but it's the easiest subject to understand. It's just step by step , like bricks in a wall, but sociology for instance requires reasoning and a bigger understanding of the whole.