Which planet has the darkest rings?

The rings of Uranus, discovered in 1977, turned out to be darker than soot. The dark color of the surface of the constituent rings of elements (blocks, stones), possibly, is explained by the constant bombardment of them by charged particles of the magnetosphere.

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.