The Answer Is B I Think Sorry If Its Wrong im 90% sure it is tho
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
Explanation:
Middle east countries hold a lot of natural gas supply.
Ex Saudi Arabia hold 300+ Trillion in natural gasses, making it the 5th highest natural gas reserve in the world.
Answer:
Increased population will invariably affects the biodiversity of a region because more food and other raw material will be source thereby altering the well being of other species in the ecosystem that depend on the raw material. Example the population explosion of human has bring about increase in fuel consumption.
Explanation:
<span>modern-day United Kingdom (England, Ireland, Scotland, Wales)</span>
