"artificial" (concerning artifacts) or "synthetic" (concerning substances).
Gold-198 is not naturally occuring.
No it is naturally occuring
Naturally occuring
copper is a naturally occuring element
Naturally occuring.
Gold-198 is not naturally occuring.
Naturally occuring evidence
A biopesticide is any naturally-occuring pesticide.
A biopesticide is any naturally-occuring pesticide.
The sugar in fruits is naturally occuring, its healthy.
Nitrogen is a naturally occuring element and has been around for billions of years. It is found naturally occuring as an invisible gas and is the most common element in the Earth's atmosphere
You don't. It's naturally occuring.