Long term exposure to ultraviolet waves can cause sunburns and skin cancer.
Explanation:
Prolonged exposure to ultraviolet rays can cause irreversible damage to the skin.
Although anyone can suffer from burns or even skin cancer, some characteristics may indicate a greater risk of being affected by these ultraviolet rays, depending on physical or hereditary characteristics.
It is always important to use sunscreen to avoid irreversible consequences.
Higher pitched sounds produce waves which are closer together than for lower pitched sounds. A smaller triangle or cymbal will make a relatively higher pitch note