How important is light to humans?
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light is very important to human. This organic matter contains energy that was first produced by the sun. Humans get our energy from the food we eat, and all of that food is derived from the energy of the sun. So, we need the sun to survive. Light energy affects water temperature, biological processes (such as the relationship between predators and prey) and plant photosynthesis and growth.Light energy is used to help us see – either naturally using the Sun or fire, or with manmade objects like candles or lightbulbs.
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