About 3,000 years ago they simply began a huge migration east word and north word, bringing with them their language, culture and farming methods. The migrating Bantu population eventually displaced the local hunter gather peoples causing them to blend into the population.
A photo's color intensity can be modified by changing the brightness and contrast. This type of situations are best known by professional cameramen. The photographer can adjust the brightness and contrast based on the type of picture that the photographer wants to take. The color intensity changes with these factors.
The correct answer is Prospect theory effect
Prospect Theory (also called Perspective Theory) is a concept of cognitive psychology that is related to decision making in economic and financial contexts.
According to this theory, people, in general, tend to make choices based on potential losses rather than gains. In other words, the basis of the Prospectus Theory is the tendency that we all have to harbor a certain risk aversion.