B. We can see the Sun even when it islittle below the horizon because ofi. Reflection of lightii. Refraction of lightiii. Dispersion of lightiv. Absorption of light

When the Sun is a little below the horizon, we can still see it due to several factors. Let's go through each option step by step:

i. Reflection of light: This refers to the phenomenon where light bounces off a surface. In the case of the Sun being below the horizon, some of its light may reflect off the atmosphere or other objects, allowing us to see it.

ii. Refraction of light: Refraction occurs when light passes through a medium and changes direction. As the Sun's light passes through the Earth's atmosphere, it can be refracted, bending the light rays and making the Sun visible even when it is below the horizon.

iii. Dispersion of light: Dispersion refers to the splitting of light into its component colors. While this phenomenon is not directly related to seeing the Sun when it is below the horizon, it can contribute to the overall visibility by scattering the sunlight and making it more visible to our eyes.

iv. Absorption of light: Absorption occurs when light is absorbed by a material or medium. In the case of the Sun being below the horizon, some of its light may be absorbed by the atmosphere or other objects, but this does not significantly affect our ability to see the Sun.

In conclusion, the main reasons why we can see the Sun even when it is below the horizon are reflection of light, refraction of light, and to a lesser extent, dispersion of light. Absorption of light plays a minor role in this phenomenon.