I think it's called essential oil.
its vegetables oil
Crude oil
Oil is called Black oil because it is really valuable and you use it for many things it is for some people really like thy found Gold. So it is called Black Gold
solar power and solar system
When they retire? Country antique dealers...
Rock collectors prefer to be called 'Petrologists.'
I was wondering the same thing
wells
Stamp collectors are call philatelists. Coin collectors are called numismatics.
I have never heard of a junior war medal collectors society. But there is a group called Medal Collectors of America.
Antique dealers
lucky feather keepers
There were no city garbage collectors. Streets were dirty and people called rag pickers sold things they found.
Binmen Garbage collectors.
It is called Crude Oil
its called the oil resivwa