Why does water appear blue in deep waters, but transparent in shallow waters ?

Explanation

**Step-by-Step Solution:**

1. **Understanding Light Absorption**: Water molecules have the ability to absorb certain wavelengths of light. When sunlight hits the water, it contains a spectrum of colors, including red, orange, yellow, green, and blue.

2. **Absorption of Colors**: Water absorbs light in the red, orange, yellow, and green wavelengths more effectively than it does blue light. This means that as light penetrates deeper into the water, these colors are absorbed, and blue light is less absorbed.

3. **Reflection and Scattering**: In deep waters, the blue light is reflected and scattered back to our eyes, giving the water a blue appearance. The deeper the water, the more pronounced this effect becomes because there is more water to absorb the other colors.

...