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Yes, and no. We all should know by know we do need the sun to survive, but we also need for energy is oxygen and the food we eat.
Dolphin6062000
Indirectly yes. 

Plants need sunlight to photosynthesize. We eat the plants/vegetables which give us glucose. Glucose is needed for respiration. One of the products of respiration is energy.

The equation of photosynthesis:
Carbon dioxide + Water ----> Glucose + Oxygen

The equation of respiration:
Oxygen + Glucose ----> Energy + Carbon dioxide + Water

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