The colour of sky is due to

Options

A. Transmission of light
B. Wavelength of scattered light
C. Absorption of light by atmospheric gases
D. All of the above

Explanation

**Step-by-Step Solution:**

1. **Understanding Light Transmission:**
- The color of the sky is primarily due to the transmission of sunlight through the Earth's atmosphere. Sunlight is made up of different colors, which correspond to different wavelengths.

2. **Wavelengths of Light:**
- Light can be categorized based on its wavelength. According to the visible spectrum (often remembered by the acronym VIBGYOR: Violet, Indigo, Blue, Green, Yellow, Orange, Red), blue light has a shorter wavelength compared to red light.

...