The basis for human rights are the laws of nature and god. These human rights (to life, liberty, and the pursuit of happiness) are inalienable and indisputable. They are of nature and god because they weren't given us by one government or another, or by some other human agreement. They naturally belong to every human being, from the moment when they were born.
Many of the runners ____ incredibly fast.
The subject is "many" and many is plural.
Has would be wrong because you need a linking verb (the predicate is an adjective)
"Is" would be wrong because the subject is plural and "is" corresponds to a singular subject.
"Was" is incorrect because "was" corresponds to a singular noun.
Therefore "are" would be correct because it is a linking verb that corresponds to a plural noun.
They are defiantly strictly factual