A theory is a guess at what the result of something will be, based on what is already known about it. Theories will often remain unchanged, unless new evidence is found that suggests the theory is incorrect - if this is the case, the theory will be modified in order to better reflect the new evidence
Survival of the fittest
He wore a hat & did not smile
Theory.
the theory about how organisms change over time.
There is no obvious way to determine which scientific discovery is the best, however, I personally would nominate the heliocentric theory of astronomy.
observations
The best way to describe Karl Marx's theory of communism is that he aimed to redistribute wealth.
This is the atomic orbitals theory.
Cognitive appraisal theory and two-factor theory describe Schachter and Singer's theory of emotion. This theory suggests that our emotions are influenced by both our physiological arousal and our cognitive interpretation of the situation.
we describe air by answering it's properties
Ani Answer I would say the best word to describe it would be "reality" But the study of it is called Social Cognative theory, check it out at:http://www.tcw.utwente.nl/theorieenoverzicht/Theory%20clusters/Health%20Communication/Social_cognitive_theory.doc/
An essay to describe your best friend would include the best traits of the best friend. The essay would also describe why you feel those traits are beneficial to your friendship.
Beautiful
scientific
Zenith
Zenith
relaxed