How to explain the dazzling sheen of gold leaf? Will this gold glitter in a completely black room?

The glitter of the gold leaf is due to the reflection of light. In a completely black room, gold will not shine.

Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.