Answer:
Currently the biogenic theory is the leading explanation for the formation of fossil fuels and it’s believed that the petroleum we most commonly use took anywhere from 1 million to 1 billion years to form and represents a wide spectrum of useful petroleum and natural gas products including methane, propane, butane, hexane, octane and others
Explanation:
Reference: www.sclubricants.com/fossil-fuels-oil/
The "<span>complete predicate" in this form would actually be "Family". When considering the predicate, we are looking for the person that would be taking this kind of action. And in this case, it would be the family.
</span><span>The family enjoyed a tasty fish supper.</span>
Helium does not react with any other substances, thus the substance’s internal structure is never greatly affected and thus helium cannot have any chemical properties.
