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Which of the following situations demonstrates the First Law of Thermodynamics?
A kicked ball slows down demonstrating a loss of energy. In every system, some energy is destroyed as it is used.
Loss of heat as friction in an internal combustion engine proves that energy can be destroyed.
The amount of energy released when wood is burned is equal to the amount taken in during photosynthesis.
The amount of energy in the coal burned in a coal-fired power plant is equal to the amount of electricity produced.
The amount of UV rays absorbed by the ozone layer is equal to the amount of sunlight reflected by the clouds.