Why the orcs of the Rings of Power do not tolerate sunlight

The Lord of the Rings: The Rings of Power premiered its third episode called Adar. The new fiction based on the work of JRR Tolkien is set during the Second Age, thousands of years before the trilogy of The Lord of the rings Y The Hobbit.

Chapter 3 introduced the kingdom of Númenor, with some of the key characters in the story such as Elendil and his son Isildur. But other characters who also had their formal introduction were the orcs.

Why the orcs of the Rings of Power do not tolerate sunlight