The red color appears first.
When the sun sets, which of the seven colors is the last to fade away?
The red color is the last to fade away.
Why are the clouds red just before sunrise?
Because they are tinged by the red ray of light, before the other rays appear.
Why are the clouds red after sunset?
Because they are tinged by the red ray of light, after the other rays have faded away.
Dew.
What is dew?
Dew is the moisture that collects on plants and other objects, during the night.