A scientific person :)
neurologist
A person who studies nautical science is commonly referred to as a maritime student or a nautical science student.
Such a person a geologist.
An idiot. Would this person deny that there is gravity, or electricity, or chemicals, or almost anything else? After all, what is science? What is his definition of this science that he does not believe in?
A person who believes only in what can be proven is often referred to as a "skeptic" or a "rationalist." They rely on empirical evidence and logical reasoning to form their beliefs and do not accept ideas or claims without sound proof.
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
Well ! If some person believes that his/her dreams do come true, means he believes he/she has the ability to perceive events in the future is normally called Clairvoyant.
A person who believes in aliens is often referred to as an "alien enthusiast" or someone who is "believes in extraterrestrial life."
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.