Answer:
<h2>The Tri-Chromtic theory</h2>
Explanation:
The Tri-chromatic theory is based on the assumption that the three classes of cone receptors sub serve the colour vision. This theory dates back to 18th century and was popular during the first half of 20th century and was often used against the opponent processes theory. It was also known as Young-Helmholtz theory of colour vision, according to this theory there are three receptors in the retina that are responsible for the perception of colour. These receptors have different sensitivity level. Blues ones are the most sensitive and the red ones the least. But to perceive the colour needs the interaction between at least two photo receptors. Then the three colours are combined to form any colour in the visible spectrum.
Answer:
D. The Ricardian model assumes labor is perfectly mobile
Explanation:
This model assumes that labor is perfectly mobile, tech is constant, and markets are perfectly competitive. It was developed by David Ricardo in his classical theory of comparative advantage which explains why countries engage in international trade even though their production may be more efficient than its trade partners. The comparative advantage of countries were explained and based on these assumptions.
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Answer:
The aim of this education was to produce well formed people capable of living in society and practicing virtue. Humanists learned ancient writings instead of Christian scriptures to better comprehend Greek beliefs. With sculpture and architecture, they continued classical practices. They also concentrated on the study of history, literature, and philosophy, which are all popular topics of classical education.
Explanation:
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