What effect the most of man skin sun or dirt?

Sun exposure can have a more significant long-term effect on skin than dirt, primarily due to its role in causing skin damage, aging, and increasing the risk of skin cancer. Ultraviolet (UV) rays can lead to premature wrinkles, sunspots, and other skin issues. While dirt can cause temporary skin irritation or clogged pores, it typically doesn’t have the same lasting impact on skin health as prolonged sun exposure does. Regular sun protection is essential to maintain healthy skin.