Ultraviolet (UV) rays have both beneficial and harmful aspects.

Beneficial aspects:

1. Vitamin D production in human body.
2. Used in disinfection.
3. Used to verify the purity of dyes, seeds, medicines etc.

Harmful aspects

1. As a result UV, the immune system is weakened.
2. Can cause skin cancer.
3. Increase the rate of cataracts and blindness
4. Seed quality is lost.
5. Food grains are wasted.