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How is the spectrum of light arranged?

  1. From color to color

  2. From the lowest to the highest intensity

  3. From the longest, lowest waves to the shortest, highest waves

  4. From the most dangerous to the safest

The correct answer is: From the longest, lowest waves to the shortest, highest waves

The spectrum of light is arranged from the longest, lowest waves (red) to the shortest, highest waves (violet). This arrangement is known as the electromagnetic spectrum and is based on the frequency of the light waves. Option A is incorrect because the colors of the spectrum are not arranged in a linear sequence from one color to another. Option B is incorrect because light intensity does not determine the arrangement of the spectrum. Option D is incorrect because the spectrum is not organized in terms of danger or safety. Instead, it is based on the properties and characteristics of light.