The sun creates it's own light, also gives light and life to bunch of stuff like plants,animals,humans etc. photosyntesis is the process of making food which needs sun,water,nutrients etc.
The sun is the ultimate source of the energy on the earth, without the sun there will be no solar energy for the autotrophs to produce energy for themselves and other organisms to get their food and nutrient as plants and other autotrophs convert the light energy to the chemical energy and store the energy in the glucose molecule.
Glucose acts as the substrate in cellular respiration in the presence of oxygen and converts into water and carbon dioxide molecules with ATP. ATP is a form of energy that provides the energy for cellular functions and movements.
Thus, considering the explanation given above justifies the argument “Without the sun, I would be unable to move.”
