The question asks which of the following is not an example of natural light. Since no specific options are provided, I will explain the concept of natural light and provide examples of both natural and artificial light sources to help clarify the distinction.

Natural Light vs. Artificial Light

Natural light refers to light that originates from natural sources, primarily the sun, but also includes other celestial bodies and natural phenomena. It is not created or controlled by humans. Examples of natural light include:

• Sunlight
• Moonlight (reflected sunlight)
• Starlight
• Lightning
• Aurora (Northern and Southern Lights)

Artificial light, on the other hand, is produced by human-made devices and technologies. Examples include:

• Light bulbs (incandescent, LED, fluorescent)
• Neon signs
• Flashlights
• Television screens
• Lasers

Answer to the Question

If the question were to include options such as:

• Sunlight
• Moonlight
• Light from a lamp
• Starlight

The correct answer would be light from a lamp, as it is an example of artificial light, not natural light.

Let me know if you'd like further clarification or a more detailed explanation!