sunlight

They will point out—and they love to point this out—that legalization has brought sunlight to an underground activity and allowed authorities to detect irregular betting patterns and catch offenders.

A day of strong sunlight can spoil more than just a beach outing -- it can also harm the process of photosynthesis, the way plants and other organisms convert sunlight into energy.

Children, teenagers, and those with darker skin or limited exposure to sunlight especially need sufficient levels to maintain bone strength.

These larger clusters scatter sunlight less effectively and behave unpredictably in the atmosphere.

Normally, ozone is destroyed when it reacts with molecules formed as ultraviolet sunlight breaks apart water vapor.