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Statistics show that skin cancer is the most common type of cancer in United States, with more people having skin cancer than the combine incidence of breast, prostate, lung and colon cancer. Since Singapore is on the equator, and all of us are exposed to UV Rays daily, we would like to find out how UV Rays affect people and whether they cause skin cancer. We are trying to find out which amount of UV Rays can harm us, or when we should use sun block to help protect our skin.

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