The layer acts as a skin for the Earth ... dirt-dwelling organisms that form a distinct crust on the top of soil in arid landscapes," said Knowable Magazine. It covers approximately 12% of ...

This condition causes an itchy rash due to hair follicle infection and can appear on any part of a person's skin. With folliculitis, a person may have pimples or sores that crust and don't heal.

In 1989, nine people were killed when a 10-by-40-foot section of a United Airlines 747 ripped away from the jetliner's outer skin on a flight ... fragment of Earth's crust. In 2020, a New York ...