A scientific person :)
neurologist
merchant mariner :D
Such a person a geologist.
I guss environmental scientists, this is most likely
Well there are many names like logical,rational or scientific etc.
A person who believes that war is wrong is called a "pacifist".
A tolerant person.
conceited
Gullible.
One who believes that everything is predistined -FATALIST
A person who believes in their dreams can be referred to as a dreamer or an idealist.
Christian, Jew, Jehova
The religion is Judaism. A person who follows Judaism is Jewish.
This is called an opinion.
a believer faithful, disciple, follower, gnostic
Conspiracy theorist, or nut job.
A person who studies Political Science is called a political scientist.