The figure below depicts the angle of rays of sunlight. Which of the following describes where the observer needs to look to see the blue light scattered by the atmosphere? 
Definitions:
Economic Improvement
The increase in overall economic health, usually marked by factors such as GDP growth, higher living standards, and reduced poverty rates.
Frontier
In economic terms, the frontier represents the maximum production capacity or efficiency that can be achieved with the current technology and resources.
Economic Inefficiency
A situation where resources are not allocated optimally, leading to waste or an outcome where potential gains are not fully realized.
Production Possibilities Curve
A graphical representation that shows the maximum possible output combinations of two goods or services an economy can achieve when all resources are fully employed.
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