Examlex
Milk is rich in calcium but a poor source of iron.
Frequency
The number of occurrences of a repeating event per unit of time, often used in the context of waves (e.g., sound waves, electromagnetic waves).
Inversely Proportional
A relationship between two variables where as one variable increases, the other variable decreases at a corresponding rate.
Directly Proportional
A relationship between two variables where if one increases, the other does as well, by a constant factor.
Electromagnetic Spectrum
The range of all types of electromagnetic radiation, including radio waves, microwaves, infrared, visible light, ultraviolet, X-rays, and gamma rays.
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