Small amounts are OK, however, consuming more than a gallon a day can affect your health, particularly if you are a smoker.
To eat tacos.
Petroleum jelly, like Vaseline, is not bad for you, just don't eat it. It is safe for babies and the elderly, not to mention everyone in between!
It can be, and is, frequently. But do not use it as a lube on natural rubber - it will "eat" it.
petroleum refining is petroleum refining
Something that contains no petroleum is petroleum-free.
A. E. Dunstan has written: 'The science of petroleum' -- subject(s): Petroleum engineering, Petroleum industry and trade 'Chemistry and the petroleum industry' -- subject(s): Petroleum
a bit
petroleum is a science fact
No, it is not. Petroleum is a form of resource.
Norman J. Hyne has written: 'Geology for petroleum exploration, drilling, and production' -- subject(s): Petroleum, Prospecting, Petroleum engineering, Geology 'Dictionary of petroleum exploration, drilling & production' -- subject(s): Dictionaries, Petroleum, Petroleum engineering 'Nontechnical guide to petroleum geology, exploration, drilling, and production' -- subject(s): Prospecting, Petroleum, Petroleum engineering, Geology
Products in this industry include calcined petroleum coke, regular petroleum coke, fireplace logs, fuel briquettes, or petroleum waxes, independently of petroleum refineries.
Victor Ross has written: 'The evolution of the oil industry' -- subject(s): Petroleum industry and trade, Petroleum 'Petroleum in Canada' -- subject(s): Petroleum, Petroleum industry and trade