When white light is incident on an object and it reflects all its constituent colors,what color does it appear to be?

Why do we observe differences in the colours of the sun during sunrise,sunset,and noon?

What is Tyndall effect?

On what factor does the colour of the scattered light depend?

$(a)$ Explain why the colour of a clear sky appears blue during the day with the help of a diagram.
$(b)$ Explain why the Sun looks reddish at the time of sunrise and sunset.

Why does the sky appear dark and black to an astronaut instead of blue?