It has been experimentally proven that the Sun is the main source of heat and light for all forms of life on Earth. This method of verifying facts and establishing "truths" is called the _____.

A) method of authority
B) scientific method
C) a priori method
D) method of tenacity

Scientific Method

A systematic and logical approach to discovering how things in the universe work, involving observation, hypothesis, experimentation, and conclusion.

Method of Authority

The acceptance of information or knowledge based on the credibility or expertise of the source, rather than on empirical evidence.

A Priori Method

An approach that derives conclusions through logical reasoning rather than from empirical observation, often used in philosophy and theoretical sciences.