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Asked by Wiki User
Yes, full spectrum sunlight, electromagnetic energy. However, recent reports of experiments at a German university have described photosynthesis initiated by chemical means. Just a different form of energy.
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Heat is a form of energy because without it the world would be a cold, dark, silent, and completely still. Energy makes things happen. It makes plants and animals live and grow. People today even use heat to cook food, heat buildings, and run machines.
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