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.UVA rays- cause skin aging and including wrinkiling.Contribututing to skin cancer including melonoma
1. UV rays reflect off both sun and water.
2.UVA rays are 95 percent of Uv radiation.
3.Some UVA rays cause cataracts.
1.more harmful than uva rays.
2.fewer than uva rays.
3.majority of the rays hit between 10am and 4pm.
uvb rays : cause sunburns,cateracts effects on immune system. Majority absorbed by the ozone layer.
Some sun exposure is good the but to much sun exposure can lead to harm
cateracts : clouding of the eyes
sunburn: burning of the skin caused by the sun.
a sun burn is one of the harm full effect's of sun exposure