Write 2 sentences telling me what physically fit means to you.

How do the uv rays cause damage?   what exactly causes the skin to burn;   can you be more specific about this mechanism?   3. how do photosensitive medications increase a person's sensitivity to sunlight and therefore increase their risk of getting burned?     what kind of medications can increase photo-sensitivity, can you think of some examples?

Is the process by which biological parents pass traits such as hair type or eye color to their children. these traits may affect their well-being and health.

List 5 common advertising techniques