Entry 18: Reflective Time for Science (Light Energy)

I observe that there are many ways to use light.Like using light to help me study,look thing cleary,dont make me feel cold and many other.If theres no light around the world we will feel cold and lonely,plants will die,animals that eat plants will also die and many more i think light helps us lots of time even we dont notice it i wish many will use light the the correct way.