Electromagnetic absorption by water refers to the process by which electromagnetic waves, such as microwaves, radio waves, infrared radiation, or ultraviolet light, are absorbed by water molecules. This absorption occurs because water molecules can vibrate and rotate in response to the electric field of the electromagnetic waves. ### Key Points: 1. **Frequency Dependence**: The amount of absorption varies with the frequency of the electromagnetic radiation. Different regions of the electromagnetic spectrum interact differently with water.
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