Q:

What causes sunsets?

A:

Quick Answer

A sunset occurs when sunlight travels through more of the earth's atmosphere. This process causes molecules to disperse blue and violet wavelengths from the light. The remaining light that reaches observers ranges from red to orange.

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Full Answer

Sunsets can differ significantly depending on the location from where a person is watching. Cities with high pollution screen out more light than normal, therefore, they produce sunsets with more reds and yellows. Volcanic eruptions cause vibrant sunsets. Adversely, areas where the air is clean produce little or no sunsets. This effect is especially noticeable in the Arctic, where the sky remains blue and the sun is orange.

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    A:

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    Why are sunsets red?

    A:

    According to the Old Dominion University, sunsets get their red color because light is refracted by particles that are in the atmosphere and the red spectrum is the one that is visible. The sky can also have shades of orange, yellow and purple when the sun begins to set.

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    A:

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