Why are invisible rays harmful to health?

Hi! I need 3 deferent works with the same research; first is annotated bibliography, second is research summarize, third is write a critical preface (introduction) for the annotated bibliography. One page for each work is more than fine (3).

The work is about: Why are invisible rays harmful to health? Such as X-Ray, Gamma Ray, UV, Blue Light. However, it only can be done by looking in the personal college library in Academic Search Complete section; I submit some example to the research.