Answer:
They used shading and perspective
Explanation:
In order to create more realistic art, Renaissance artists developed new painting techniques. For example, they learned about perspective. 4 Instead of stacking figures and objects together on a canvas, figures that were far away were painted smaller.
It is Song Dynasty (宋), and the answer is (D).
Answer:
The answer is social clock.
Explanation:
This phenomenon explains the expectancy of society to achieve certain things at a determined time (for example, graduating from high school at age eighteen or getting married in your twenties). However, these expectations are variable in different parts of the world.
Bernice Neugarten proposed the idea in order to explain the aging process. She stated that events in people's lives occur in a predictable manner.
The Bering Strait Land Bridge is a good example of this. During the Ice Age, humans from Asia migrated to what now is called North America in order to thrive in new lands, with new farming style.
Explained
Learned helplessness is a psychological disorder. It occurs when a person feel stressful situation repeatedly. In this situation they believe that they are not able to work and move. So that they do not try to escape or take action against the situation.
The opportunities become changed according to the situation. Martin Saligman explained about learned helplessness. Learned helplessness leads to the psychological disorder such as stress and depression. It is also included mental disorder such as PTSD.