1) Visible light interacts with chlorophyll to provide the energy needed for photosynthesis. Radiation that we can’t see, ultraviolet, makes skin tan or burn. Infrared radiation lets night vision scopes see objects that otherwise would be invisible. Radio waves interact with tuning circuits to produce sound. X-rays kill malignant cells and microwaves cooks food.
Ultraviolet radiation on the skin. Ultraviolet radiation can cause sunburn and skin cancer. We have invented a radiation-absorbing molecule called melanin to protect our skin. When skin is exposed to sun it creates its own melanin, which means you become even more tan
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