Navy Seals Recruitment Basic Enlistment Requirements. Joining any branch of the military involves meeting certain enlistment requirements and standards that must be met prior to acceptance. For example, most military branches have the same age and citizenship requirements.
The noun XENON has 1 sense: 1. a colorless odorless inert gaseous element occurring in the earth's atmosphere in trace amounts. Familiarity information: XENON used as a noun is very rare.
Xenon is in the air that we breathe, but itâs also one of the rarest elements on Earth. There is about 1 part xenon in every 11.5 million parts of air. The global industry that extracts liquid xenon produces a total of about 40 tons of xenon per year, so 10 tons is a very tall order.